CVE-2024-45016

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When this happens qlen_notify() may be\nskipped on the parent during destruction, leaving a dangling pointer\nfor some classful qdiscs like DRR.\n\nThere are two ways for the bug happen:\n\n- If the duplicated packet is dropped by rootq->enqueue() and then\n the original packet is also dropped.\n- If rootq->enqueue() sends the duplicated packet to a different qdisc\n and the original packet is dropped.\n\nIn both cases NET_XMIT_SUCCESS is returned even though no packets\nare enqueued at the netem qdisc.\n\nThe fix is to defer the enqueue of the duplicate packet until after\nthe original packet has been guaranteed to return NET_XMIT_SUCCESS."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerability is reached by configuring a DRR/netem qdisc hierarchy via rtnetlink (RTM_NEWQDISC/RTM_NEWTCLASS) and locally transmitting packets through it. This requires local system access, matching the tc/netlink qdisc guidance.\nAC:L - The attacker fully controls both trigger conditions \u2014 netem's `duplicate` probability (settable to 100%) and its `limit` \u2014 so the bogus NET_XMIT_SUCCESS is produced deterministically on every enqueue, with no race to win and no reliance on state outside the attacker's control.\nPR:L - Qdisc and class configuration requires CAP_NET_ADMIN, but the check is `netlink_net_capable()` against the netns owner user_ns, so any unprivileged user obtains it inside `unshare -Urn` along with a dummy/veth device to attach the qdiscs to.\nUI:N - The attacker performs every step \u2014 qdisc setup, packet transmission, class deletion, and the subsequent dequeue that touches freed memory \u2014 with no victim action required.\nS:U - The corruption occurs in kernel heap memory within the same host security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The freed `struct drr_class` remains linked in `q->active` and is dereferenced on dequeue (`cl->qdisc->ops->peek`, `cl->deficit`), so reclaiming the slab object lets the attacker read arbitrary kernel memory through the attacker-controlled `cl->qdisc` pointer.\nI:H - The use-after-free yields a write primitive via `list_del`/`list_move_tail` into the freed object and a controlled function-pointer call through `cl->qdisc->ops->peek`, which is sufficient for control-flow hijack and privilege escalation.\nA:H - Even without successful exploitation the dangling `drr_class` pointer causes an oops/panic on the next dequeue, and the desynchronized parent q.qlen corrupts scheduler state, reliably crashing the kernel."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sched/sch_netem.c"], "versions": [{"version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "lessThan": 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"https://git.kernel.org/stable/c/52d99a69f3d556c6426048c9d481b912205919d8"}, {"url": "https://git.kernel.org/stable/c/0486d31dd8198e22b63a4730244b38fffce6d469"}, {"url": "https://git.kernel.org/stable/c/577d6c0619467fe90f7e8e57e45cb5bd9d936014"}, {"url": "https://git.kernel.org/stable/c/e5bb2988a310667abed66c7d3ffa28880cf0f883"}, {"url": "https://git.kernel.org/stable/c/c07ff8592d57ed258afee5a5e04991a48dbaf382"}], "title": "netem: fix return value if duplicate enqueue fails", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-29T15:49:19.675501Z", "id": "CVE-2024-45016", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-29T15:49:33.932Z"}}, {"title": "CVE Program 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This requires local system access, matching the tc/netlink qdisc guidance.\nAC:L - The attacker fully controls both trigger conditions \u2014 netem's `duplicate` probability (settable to 100%) and its `limit` \u2014 so the bogus NET_XMIT_SUCCESS is produced deterministically on every enqueue, with no race to win and no reliance on state outside the attacker's control.\nPR:L - Qdisc and class configuration requires CAP_NET_ADMIN, but the check is `netlink_net_capable()` against the netns owner user_ns, so any unprivileged user obtains it inside `unshare -Urn` along with a dummy/veth device to attach the qdiscs to.\nUI:N - The attacker performs every step \u2014 qdisc setup, packet transmission, class deletion, and the subsequent dequeue that touches freed memory \u2014 with no victim action required.\nS:U - The corruption occurs in kernel heap memory within the same host security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The freed `struct drr_class` remains linked in `q->active` and is dereferenced on dequeue (`cl->qdisc->ops->peek`, `cl->deficit`), so reclaiming the slab object lets the attacker read arbitrary kernel memory through the attacker-controlled `cl->qdisc` pointer.\nI:H - The use-after-free yields a write primitive via `list_del`/`list_move_tail` into the freed object and a controlled function-pointer call through `cl->qdisc->ops->peek`, which is sufficient for control-flow hijack and privilege escalation.\nA:H - Even without successful exploitation the dangling `drr_class` pointer causes an oops/panic on the next dequeue, and the desynchronized parent q.qlen corrupts scheduler state, reliably crashing the kernel."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "lessThan": "759e3e8c4a6a6b4e52ebc4547123a457f0ce90d4", "versionType": "git"}, {"status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "lessThan": "c414000da1c2ea1ba9a5e5bb1a4ba774e51e202d", "versionType": "git"}, {"status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "lessThan": "52d99a69f3d556c6426048c9d481b912205919d8", "versionType": "git"}, {"status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "lessThan": "0486d31dd8198e22b63a4730244b38fffce6d469", "versionType": "git"}, {"status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "lessThan": "577d6c0619467fe90f7e8e57e45cb5bd9d936014", "versionType": "git"}, {"status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "lessThan": "e5bb2988a310667abed66c7d3ffa28880cf0f883", "versionType": "git"}, {"status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "lessThan": "c07ff8592d57ed258afee5a5e04991a48dbaf382", "versionType": "git"}, {"status": "affected", "version": "a550a01b8af856f2684b0f79d552f5119eb5006c", "versionType": "git"}, {"status": "affected", "version": "009510a90e230bb495f3fe25c7db956679263b07", "versionType": "git"}, {"status": "affected", "version": "4de7d30668cb8b06330992e1cd336f91700a2ce7", "versionType": "git"}, {"status": "affected", "version": "d1dd2e15c85e890a1cc9bde5ba07ae63331e5c73", "versionType": "git"}, {"status": "affected", "version": "0148fe458b5705e2fea7cb88294fed7e36066ca2", "versionType": "git"}, {"status": "affected", "version": "3.16.66", "lessThan": "3.17", "versionType": "semver"}, {"status": "affected", "version": "4.9.163", "lessThan": "4.10", "versionType": "semver"}, {"status": "affected", "version": "4.14.106", "lessThan": "4.15", "versionType": "semver"}, {"status": "affected", "version": "4.19.28", "lessThan": "4.20", "versionType": "semver"}, {"status": "affected", "version": "4.20.15", "lessThan": "4.21", "versionType": "semver"}], "programFiles": ["net/sched/sch_netem.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"status": "unaffected", "version": "0", "lessThan": "5.0", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.283", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.225", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.166", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.107", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.48", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.7", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/sched/sch_netem.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/759e3e8c4a6a6b4e52ebc4547123a457f0ce90d4"}, {"url": "https://git.kernel.org/stable/c/c414000da1c2ea1ba9a5e5bb1a4ba774e51e202d"}, {"url": "https://git.kernel.org/stable/c/52d99a69f3d556c6426048c9d481b912205919d8"}, {"url": "https://git.kernel.org/stable/c/0486d31dd8198e22b63a4730244b38fffce6d469"}, {"url": "https://git.kernel.org/stable/c/577d6c0619467fe90f7e8e57e45cb5bd9d936014"}, {"url": "https://git.kernel.org/stable/c/e5bb2988a310667abed66c7d3ffa28880cf0f883"}, {"url": "https://git.kernel.org/stable/c/c07ff8592d57ed258afee5a5e04991a48dbaf382"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetem: fix return value if duplicate enqueue fails\n\nThere is a bug in netem_enqueue() introduced by\ncommit 5845f706388a (\"net: netem: fix skb length BUG_ON in __skb_to_sgvec\")\nthat can lead to a use-after-free.\n\nThis commit made netem_enqueue() always return NET_XMIT_SUCCESS\nwhen a packet is duplicated, which can cause the parent qdisc's q.qlen\nto be mistakenly incremented. When this happens qlen_notify() may be\nskipped on the parent during destruction, leaving a dangling pointer\nfor some classful qdiscs like DRR.\n\nThere are two ways for the bug happen:\n\n- If the duplicated packet is dropped by rootq->enqueue() and then\n the original packet is also dropped.\n- If rootq->enqueue() sends the duplicated packet to a different qdisc\n and the original packet is dropped.\n\nIn both cases NET_XMIT_SUCCESS is returned even though no packets\nare enqueued at the netem qdisc.\n\nThe fix is to defer the enqueue of the duplicate packet until after\nthe original packet has been guaranteed to return NET_XMIT_SUCCESS."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.283", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.225", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.166", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.107", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.48", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.7", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "3.16.66"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.9.163"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.14.106"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.19.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.20.15"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:37:41.654Z"}}}, "cveMetadata": {"cveId": "CVE-2024-45016", "state": "PUBLISHED", "dateUpdated": "2026-10-15T00:50:01.010Z", "dateReserved": "2024-08-21T05:34:56.682Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-09-11T15:13:52.053Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/sched/sch_netem.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "759e3e8c4a6a6b4e52ebc4547123a457f0ce90d4", "status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "versionType": "git"}, {"lessThan": "c414000da1c2ea1ba9a5e5bb1a4ba774e51e202d", "status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "versionType": "git"}, {"lessThan": "52d99a69f3d556c6426048c9d481b912205919d8", "status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "versionType": "git"}, {"lessThan": "0486d31dd8198e22b63a4730244b38fffce6d469", "status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "versionType": "git"}, {"lessThan": "577d6c0619467fe90f7e8e57e45cb5bd9d936014", "status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "versionType": "git"}, {"lessThan": "e5bb2988a310667abed66c7d3ffa28880cf0f883", "status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "versionType": "git"}, {"lessThan": "c07ff8592d57ed258afee5a5e04991a48dbaf382", "status": "affected", "version": "5845f706388a4cde0f6b80f9e5d33527e942b7d9", "versionType": "git"}, {"status": "affected", "version": "a550a01b8af856f2684b0f79d552f5119eb5006c", "versionType": "git"}, {"status": "affected", "version": "009510a90e230bb495f3fe25c7db956679263b07", "versionType": "git"}, {"status": "affected", "version": "4de7d30668cb8b06330992e1cd336f91700a2ce7", "versionType": "git"}, {"status": "affected", "version": "d1dd2e15c85e890a1cc9bde5ba07ae63331e5c73", "versionType": "git"}, {"status": "affected", "version": "0148fe458b5705e2fea7cb88294fed7e36066ca2", "versionType": "git"}, {"lessThan": "3.17", "status": "affected", "version": "3.16.66", "versionType": "semver"}, {"lessThan": "4.10", "status": "affected", "version": "4.9.163", "versionType": "semver"}, {"lessThan": "4.15", "status": "affected", "version": "4.14.106", "versionType": "semver"}, {"lessThan": "4.20", "status": "affected", "version": "4.19.28", "versionType": "semver"}, {"lessThan": "4.21", "status": "affected", "version": "4.20.15", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/sched/sch_netem.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"lessThan": "5.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.283", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.225", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.166", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.107", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.48", "versionType": "semver"}, {"lessThanOrEqual": "6.10.*", "status": "unaffected", "version": "6.10.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"affectedData": [{"defaultStatus": "unknown", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "vendor": "Siemens", "versions": [{"lessThan": "V1.1.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "07286026-9003-45BE-90E5-51F9AF983C18", "versionEndExcluding": "5.4.283", "versionStartIncluding": "5.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C57B46A9-B105-4792-8481-1870DEFB436A", "versionEndExcluding": "5.10.225", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "913ED6CD-8ACF-48AF-AA18-7880881DD402", "versionEndExcluding": "5.15.166", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "53954FF8-CB48-4302-BC4C-9DA7A88F44A2", "versionEndExcluding": "6.1.107", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9DE9201A-CE6B-4726-BABB-8265EA0F8AE4", "versionEndExcluding": "6.6.48", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D2AFDFD1-D95A-4EB7-843B-5E7659518B67", "versionEndExcluding": "6.10.7", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*", "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*", "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*", "matchCriteriaId": "39889A68-6D34-47A6-82FC-CD0BF23D6754", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetem: fix return value if duplicate enqueue fails\n\nThere is a bug in netem_enqueue() introduced by\ncommit 5845f706388a (\"net: netem: fix skb length BUG_ON in __skb_to_sgvec\")\nthat can lead to a use-after-free.\n\nThis commit made netem_enqueue() always return NET_XMIT_SUCCESS\nwhen a packet is duplicated, which can cause the parent qdisc's q.qlen\nto be mistakenly incremented. When this happens qlen_notify() may be\nskipped on the parent during destruction, leaving a dangling pointer\nfor some classful qdiscs like DRR.\n\nThere are two ways for the bug happen:\n\n- If the duplicated packet is dropped by rootq->enqueue() and then\n the original packet is also dropped.\n- If rootq->enqueue() sends the duplicated packet to a different qdisc\n and the original packet is dropped.\n\nIn both cases NET_XMIT_SUCCESS is returned even though no packets\nare enqueued at the netem qdisc.\n\nThe fix is to defer the enqueue of the duplicate packet until after\nthe original packet has been guaranteed to return NET_XMIT_SUCCESS."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netem: corregir valor de retorno si falla la puesta en cola duplicada Hay un error en netem_enqueue() introducido por el commit 5845f706388a (\"net: netem: corregir BUG_ON de longitud de skb en __skb_to_sgvec\") que puede provocar un use-after-free. Esta confirmaci\u00f3n hizo que netem_enqueue() siempre devolviera NET_XMIT_SUCCESS cuando se duplica un paquete, lo que puede provocar que el q.qlen de la qdisc padre se incremente por error. Cuando esto sucede, es posible que qlen_notify() se omita en el padre durante la destrucci\u00f3n, dejando un puntero colgante para algunas qdisc con clase como DRR. Hay dos formas en las que ocurre el error: - Si el paquete duplicado se descarta mediante rootq->enqueue() y luego tambi\u00e9n se descarta el paquete original. - Si rootq->enqueue() env\u00eda el paquete duplicado a una qdisc diferente y se descarta el paquete original, en ambos casos se devuelve NET_XMIT_SUCCESS aunque no haya paquetes en cola en la qdisc netem. La soluci\u00f3n es posponer la puesta en cola del paquete duplicado hasta que se haya garantizado que el paquete original devolver\u00e1 NET_XMIT_SUCCESS."}], "id": "CVE-2024-45016", "lastModified": "2026-10-15T01:18:51.280", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-45016", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-29T15:49:19.675501Z", "version": "2.0.3"}}]}, "published": "2024-09-11T16:15:06.817", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0486d31dd8198e22b63a4730244b38fffce6d469"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52d99a69f3d556c6426048c9d481b912205919d8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/577d6c0619467fe90f7e8e57e45cb5bd9d936014"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/759e3e8c4a6a6b4e52ebc4547123a457f0ce90d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c07ff8592d57ed258afee5a5e04991a48dbaf382"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c414000da1c2ea1ba9a5e5bb1a4ba774e51e202d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e5bb2988a310667abed66c7d3ffa28880cf0f883"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: netem: fix return value if duplicate enqueue fails", "id": "2311713", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2311713"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetem: fix return value if duplicate enqueue fails\nThere is a bug in netem_enqueue() introduced by\ncommit 5845f706388a (\"net: netem: fix skb length BUG_ON in __skb_to_sgvec\")\nthat can lead to a use-after-free.\nThis commit made netem_enqueue() always return NET_XMIT_SUCCESS\nwhen a packet is duplicated, which can cause the parent qdisc's q.qlen\nto be mistakenly incremented. When this happens qlen_notify() may be\nskipped on the parent during destruction, leaving a dangling pointer\nfor some classful qdiscs like DRR.\nThere are two ways for the bug happen:\n- If the duplicated packet is dropped by rootq->enqueue() and then\nthe original packet is also dropped.\n- If rootq->enqueue() sends the duplicated packet to a different qdisc\nand the original packet is dropped.\nIn both cases NET_XMIT_SUCCESS is returned even though no packets\nare enqueued at the netem qdisc.\nThe fix is to defer the enqueue of the duplicate packet until after\nthe original packet has been guaranteed to return NET_XMIT_SUCCESS."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-45016", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-09-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-45016\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-45016\nhttps://lore.kernel.org/linux-cve-announce/2024091108-CVE-2024-45016-fd5a@gregkh/T"], "statement": "Red Hat Enterprise Linux starting from 8.10 versions are affected.", "threat_severity": "Moderate"}

{}