CVE-2024-27020

{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-27020", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.209Z", "datePublished": "2024-05-01T05:30:15.908Z", "dateUpdated": "2026-10-15T00:39:49.843Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:29:03.453Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()\n\nnft_unregister_expr() can concurrent with __nft_expr_type_get(),\nand there is not any protection when iterate over nf_tables_expressions\nlist in __nft_expr_type_get(). Therefore, there is potential data-race\nof nf_tables_expressions list entry.\n\nUse list_for_each_entry_rcu() to iterate over nf_tables_expressions\nlist in __nft_expr_type_get(), and use rcu_read_lock() in the caller\nnft_expr_type_get() to protect the entire type query process."}], "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 vulnerable path is reached only through NETLINK_NETFILTER messages (NFT_MSG_NEWRULE/NEWSET batches) sent by a local process on the same host. Per kernel scoring guidance, netfilter/nftables netlink configuration is a local attack vector.\nAC:L - The attacker fully controls the reader side (unbounded NFT_MSG_NEWRULE batches in one netns) and can drive the writer side by forcing expression-module autoload from a second netns, where nf_tables_module_autoload() intentionally releases commit_mutex before request_module(); because the writer holds only the global nfnl mutex and the reader only the per-netns commit_mutex, the two run concurrently with no shared lock and the race can be retried indefinitely.\nPR:L - nfnetlink gates on netlink_net_capable(skb, CAP_NET_ADMIN), which resolves to ns_capable() against the network namespace's owning user namespace, so an ordinary unprivileged user obtains it with \"unshare -Urn\". No real root or init-namespace capability is needed.\nUI:N - The attacker performs the entire sequence \u2014 creating namespaces, issuing nftables batches, and triggering module autoload \u2014 with no action by any other user or administrator.\nS:U - The race and its consequences are confined to the kernel of the same host; there is no crossing into a different security authority such as a hypervisor or IOMMU boundary.\nC:H - Losing the RCU protection lets nft_expr_type_get() retain a pointer into module memory past free_module()'s synchronize_rcu(), so type->owner, type->name, type->maxattr and type->policy are read from freed and potentially reclaimed memory; an attacker-controlled reclaim of that module-region allocation combined with the attacker-supplied nla_policy parse yields kernel memory disclosure.\nI:H - try_module_get() performs an atomic increment through a dangling type->owner pointer, giving a write into freed memory, and type->select_ops/type->ops become indirect calls through freed module-region storage that can be reclaimed (e.g. by another module load or BPF JIT allocation), making control-flow hijack achievable.\nA:H - Dereferencing the stale nft_expr_type and the freed struct module after the module's vmalloc'd memory is released causes an oops or panic, and the unsynchronized traversal of a concurrently modified list can itself derail into invalid pointers."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_tables_api.c"], "versions": [{"version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "939109c0a8e2a006a6cc8209e262d25065f4403a", "status": "affected", "versionType": "git"}, {"version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "b38a133d37fa421c8447b383d788c9cc6f5cb34c", "status": "affected", "versionType": "git"}, {"version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "934e66e231cff2b18faa2c8aad0b8cec13957e05", "status": "affected", "versionType": "git"}, {"version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "0b6de00206adbbfc6373b3ae38d2a6f197987907", "status": "affected", "versionType": "git"}, {"version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "8d56bad42ac4c43c6c72ddd6a654a2628bf839c5", "status": "affected", "versionType": "git"}, {"version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "a9ebf340d123ae12582210407f879d6a5a1bc25b", "status": "affected", "versionType": "git"}, {"version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "01f1a678b05ade4b1248019c2dcca773aebbeb7f", "status": "affected", "versionType": "git"}, {"version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "f969eb84ce482331a991079ab7a5c4dc3b7f89bf", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_tables_api.c"], "versions": [{"version": "3.13", "status": "affected"}, {"version": "0", "lessThan": "3.13", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.313", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.275", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.216", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.157", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.88", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.29", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8.8", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "4.19.313"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.4.275"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.10.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.15.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.1.88"}, {"vulnerable": true, "criteria": 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The vulnerable path is reached only through NETLINK_NETFILTER messages (NFT_MSG_NEWRULE/NEWSET batches) sent by a local process on the same host. Per kernel scoring guidance, netfilter/nftables netlink configuration is a local attack vector.\nAC:L - The attacker fully controls the reader side (unbounded NFT_MSG_NEWRULE batches in one netns) and can drive the writer side by forcing expression-module autoload from a second netns, where nf_tables_module_autoload() intentionally releases commit_mutex before request_module(); because the writer holds only the global nfnl mutex and the reader only the per-netns commit_mutex, the two run concurrently with no shared lock and the race can be retried indefinitely.\nPR:L - nfnetlink gates on netlink_net_capable(skb, CAP_NET_ADMIN), which resolves to ns_capable() against the network namespace's owning user namespace, so an ordinary unprivileged user obtains it with \"unshare -Urn\". No real root or init-namespace capability is needed.\nUI:N - The attacker performs the entire sequence \u2014 creating namespaces, issuing nftables batches, and triggering module autoload \u2014 with no action by any other user or administrator.\nS:U - The race and its consequences are confined to the kernel of the same host; there is no crossing into a different security authority such as a hypervisor or IOMMU boundary.\nC:H - Losing the RCU protection lets nft_expr_type_get() retain a pointer into module memory past free_module()'s synchronize_rcu(), so type->owner, type->name, type->maxattr and type->policy are read from freed and potentially reclaimed memory; an attacker-controlled reclaim of that module-region allocation combined with the attacker-supplied nla_policy parse yields kernel memory disclosure.\nI:H - try_module_get() performs an atomic increment through a dangling type->owner pointer, giving a write into freed memory, and type->select_ops/type->ops become indirect calls through freed module-region storage that can be reclaimed (e.g. by another module load or BPF JIT allocation), making control-flow hijack achievable.\nA:H - Dereferencing the stale nft_expr_type and the freed struct module after the module's vmalloc'd memory is released causes an oops or panic, and the unsynchronized traversal of a concurrently modified list can itself derail into invalid pointers."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "939109c0a8e2a006a6cc8209e262d25065f4403a", "versionType": "git"}, {"status": "affected", "version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "b38a133d37fa421c8447b383d788c9cc6f5cb34c", "versionType": "git"}, {"status": "affected", "version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "934e66e231cff2b18faa2c8aad0b8cec13957e05", "versionType": "git"}, {"status": "affected", "version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "0b6de00206adbbfc6373b3ae38d2a6f197987907", "versionType": "git"}, {"status": "affected", "version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "8d56bad42ac4c43c6c72ddd6a654a2628bf839c5", "versionType": "git"}, {"status": "affected", "version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "a9ebf340d123ae12582210407f879d6a5a1bc25b", "versionType": "git"}, {"status": "affected", "version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "01f1a678b05ade4b1248019c2dcca773aebbeb7f", "versionType": "git"}, {"status": "affected", "version": "ef1f7df9170dbd875ce198ba84e6ab80f6fc139e", "lessThan": "f969eb84ce482331a991079ab7a5c4dc3b7f89bf", "versionType": "git"}], "programFiles": ["net/netfilter/nf_tables_api.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.13"}, {"status": "unaffected", "version": "0", "lessThan": "3.13", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.313", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.275", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.216", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.157", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.88", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.29", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.8", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/netfilter/nf_tables_api.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/939109c0a8e2a006a6cc8209e262d25065f4403a"}, {"url": "https://git.kernel.org/stable/c/b38a133d37fa421c8447b383d788c9cc6f5cb34c"}, {"url": "https://git.kernel.org/stable/c/934e66e231cff2b18faa2c8aad0b8cec13957e05"}, {"url": "https://git.kernel.org/stable/c/0b6de00206adbbfc6373b3ae38d2a6f197987907"}, {"url": "https://git.kernel.org/stable/c/8d56bad42ac4c43c6c72ddd6a654a2628bf839c5"}, {"url": "https://git.kernel.org/stable/c/a9ebf340d123ae12582210407f879d6a5a1bc25b"}, {"url": "https://git.kernel.org/stable/c/01f1a678b05ade4b1248019c2dcca773aebbeb7f"}, {"url": "https://git.kernel.org/stable/c/f969eb84ce482331a991079ab7a5c4dc3b7f89bf"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()\n\nnft_unregister_expr() can concurrent with __nft_expr_type_get(),\nand there is not any protection when iterate over nf_tables_expressions\nlist in __nft_expr_type_get(). Therefore, there is potential data-race\nof nf_tables_expressions list entry.\n\nUse list_for_each_entry_rcu() to iterate over nf_tables_expressions\nlist in __nft_expr_type_get(), and use rcu_read_lock() in the caller\nnft_expr_type_get() to protect the entire type query process."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.313", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.275", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.216", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.157", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.88", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.29", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.8.8", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.9", "versionStartIncluding": "3.13"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:29:03.453Z"}}}, "cveMetadata": {"cveId": "CVE-2024-27020", "state": "PUBLISHED", "dateUpdated": "2026-10-15T00:39:49.843Z", "dateReserved": "2024-02-19T14:20:24.209Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-01T05:30:15.908Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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GNU/Linux subsystem", "vendor": "Siemens", "versions": [{"lessThan": "V1.1.1", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unknown", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "vendor": "Siemens", "versions": [{"lessThan": "V3.1.5", "status": "affected", "version": "V3.1.0", "versionType": "custom"}]}], "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "22DD99BA-225B-49F6-AD13-22F00AEDE90F", "versionEndExcluding": "4.19.313", "versionStartIncluding": "3.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5FF6D8DE-C559-4586-86C8-2C6B4420A2C2", "versionEndExcluding": "5.4.275", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A44ABF89-F1BD-4C9A-895D-7596650DCD27", "versionEndExcluding": "5.10.216", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C67E2ABA-9F30-4CE6-A840-B1051D07E0CF", "versionEndExcluding": "5.15.157", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B665F958-644E-434D-A78D-CCD1628D1774", "versionEndExcluding": "6.1.88", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0999E154-1E68-41FA-8DE3-9A735E382224", "versionEndExcluding": "6.6.29", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "673B3328-389D-41A4-9617-669298635262", "versionEndExcluding": "6.8.8", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*", "matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*", "matchCriteriaId": "DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*", "matchCriteriaId": "52048DDA-FC5A-4363-95A0-A6357B4D7F8C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*", "matchCriteriaId": "A06B2CCF-3F43-4FA9-8773-C83C3F5764B2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()\n\nnft_unregister_expr() can concurrent with __nft_expr_type_get(),\nand there is not any protection when iterate over nf_tables_expressions\nlist in __nft_expr_type_get(). Therefore, there is potential data-race\nof nf_tables_expressions list entry.\n\nUse list_for_each_entry_rcu() to iterate over nf_tables_expressions\nlist in __nft_expr_type_get(), and use rcu_read_lock() in the caller\nnft_expr_type_get() to protect the entire type query process."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: nf_tables: corrige una posible ejecuci\u00f3n de datos en __nft_expr_type_get() nft_unregister_expr() puede concurrente con __nft_expr_type_get(), y no hay ninguna protecci\u00f3n cuando se itera sobre la lista nf_tables_expressions en __nft_expr_type_get() . Por lo tanto, existe una posible ejecuci\u00f3n de datos en la entrada de la lista nf_tables_expressions. Utilice list_for_each_entry_rcu() para iterar sobre la lista nf_tables_expressions en __nft_expr_type_get() y utilice rcu_read_lock() en el llamador nft_expr_type_get() para proteger todo el proceso de consulta de tipos."}], "id": "CVE-2024-27020", "lastModified": "2026-10-15T01:17:36.473", "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": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", 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[{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-362"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:5102", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.16.1.rt7.357.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}, {"advisory": "RHSA-2024:5101", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.16.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-08-08T00:00:00Z"}, {"advisory": "RHSA-2024:6753", "cpe": "cpe:/o:redhat:rhel_aus:8.6", "package": "kernel-0:4.18.0-372.123.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2024-09-18T00:00:00Z"}, {"advisory": "RHSA-2024:6753", "cpe": "cpe:/o:redhat:rhel_tus:8.6", "package": "kernel-0:4.18.0-372.123.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2024-09-18T00:00:00Z"}, {"advisory": "RHSA-2024:6753", "cpe": "cpe:/o:redhat:rhel_e4s:8.6", "package": "kernel-0:4.18.0-372.123.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2024-09-18T00:00:00Z"}, {"advisory": "RHSA-2024:6993", "cpe": "cpe:/o:redhat:rhel_eus:8.8", "package": "kernel-0:4.18.0-477.74.1.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:5928", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.33.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-08-28T00:00:00Z"}, {"advisory": "RHSA-2024:5928", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.33.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-08-28T00:00:00Z"}, {"advisory": "RHSA-2024:4823", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "kernel-0:5.14.0-284.75.1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-24T00:00:00Z"}, {"advisory": "RHSA-2024:4831", "cpe": "cpe:/a:redhat:rhel_eus:9.2::nfv", "package": "kernel-rt-0:5.14.0-284.75.1.rt14.360.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-24T00:00:00Z"}], "bugzilla": {"description": "kernel: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()", "id": "2278256", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278256"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()\nnft_unregister_expr() can concurrent with __nft_expr_type_get(),\nand there is not any protection when iterate over nf_tables_expressions\nlist in __nft_expr_type_get(). Therefore, there is potential data-race\nof nf_tables_expressions list entry.\nUse list_for_each_entry_rcu() to iterate over nf_tables_expressions\nlist in __nft_expr_type_get(), and use rcu_read_lock() in the caller\nnft_expr_type_get() to protect the entire type query process.", "A flaw was found in the Linux kernel. A potential data-race in the __nft_expr_type_get() function exists."], "name": "CVE-2024-27020", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-27020\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-27020\nhttps://lore.kernel.org/linux-cve-announce/2024050150-CVE-2024-27020-5158@gregkh/T"], "threat_severity": "Moderate"}

{}