CVE-2024-50264

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suffice.\nUI:N - The attacker's own process performs all operations; no action from any other user is required.\nS:U - The use-after-free corrupts kernel heap memory within the kernel's own security authority, yielding privilege escalation without crossing into another security scope such as a VM/host boundary.\nC:H - The UAF lets the attacker reclaim the freed virtio_vsock_sock object via heap spray and read attacker-influenced kernel memory, providing an arbitrary-read primitive (leveraged for full LPE).\nI:H - Controlling the contents of the reallocated freed object gives a write/control-flow-hijack primitive, enabling arbitrary kernel modification and code execution (demonstrated full LPE).\nA:H - Use-after-free of vsk->trans reliably causes kernel memory corruption, oops, and panic, fully impacting availability."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", 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"vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:*", "matchCriteriaId": "24B88717-53F5-42AA-9B72-14C707639E3F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: Initialization of the dangling pointer occurring in vsk->trans\n\nDuring loopback communication, a dangling pointer can be created in\nvsk->trans, potentially leading to a Use-After-Free condition. This\nissue is resolved by initializing vsk->trans to NULL."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock/virtio: inicializaci\u00f3n del puntero colgante que se produce en vsk->trans. Durante la comunicaci\u00f3n de bucle invertido, se puede crear un puntero colgante en vsk->trans, lo que puede provocar una condici\u00f3n de Use-After-Free. Este problema se resuelve inicializando vsk->trans en NULL."}], "id": "CVE-2024-50264", "lastModified": "2026-06-17T08:04:02.883", "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": "nvd@nist.gov", "type": "Primary"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-50264", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-12-11T14:48:50.387406Z", "version": "2.0.3"}}]}, "published": "2024-11-19T02:16:28.210", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://a13xp0p0v.github.io/2025/09/02/kernel-hack-drill-and-CVE-2024-50264.html"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2a6a4e69f255b7aed17f93995691ab4f0d3c2203"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/44d29897eafd0e1196453d3003a4d5e0b968eeab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5f092a4271f6dccf88fe0d132475a17b69ef71df"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["VDB Entry"], "url": "https://git.kernel.org/stable/c/5f970935d09934222fdef3d0e20c648ea7a963c1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b110196fec44fe966952004bd426967c2a8fd358"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eb1bdcb7dfc30b24495ee4c5533af0ed135cb5f1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fd8ae346692a56b4437d626c5460c7104980f389"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:10944", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.32.1.rt7.373.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-12-11T00:00:00Z"}, {"advisory": "RHSA-2024:10943", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.32.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-12-11T00:00:00Z"}, {"advisory": "RHSA-2025:2627", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.31.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-03-11T00:00:00Z"}, {"advisory": "RHSA-2025:2627", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.31.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-03-11T00:00:00Z"}, {"advisory": "RHSA-2025:3510", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "kernel-0:5.14.0-427.62.1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-04-02T00:00:00Z"}], "bugzilla": {"description": "kernel: vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans", "id": "2327168", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2327168"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nvsock/virtio: Initialization of the dangling pointer occurring in vsk->trans\nDuring loopback communication, a dangling pointer can be created in\nvsk->trans, potentially leading to a Use-After-Free condition. This\nissue is resolved by initializing vsk->trans to NULL."], "name": "CVE-2024-50264", "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": "2024-11-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50264\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50264\nhttps://lore.kernel.org/linux-cve-announce/2024111920-CVE-2024-50264-0889@gregkh/T"], "threat_severity": "Moderate"}

{}