gsd-2023-2235
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation.
The perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability.
We recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2.
Aliases
Aliases
{ GSD: { alias: "CVE-2023-2235", id: "GSD-2023-2235", }, gsd: { metadata: { exploitCode: "unknown", remediation: "unknown", reportConfidence: "confirmed", type: "vulnerability", }, osvSchema: { aliases: [ "CVE-2023-2235", ], details: "A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation.\n\nThe perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability.\n\nWe recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2.\n\n", id: "GSD-2023-2235", modified: "2023-12-13T01:20:32.077859Z", schema_version: "1.4.0", }, }, namespaces: { "cve.org": { CVE_data_meta: { ASSIGNER: "security@google.com", ID: "CVE-2023-2235", STATE: "PUBLIC", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "Linux Kernel", version: { version_data: [ { version_affected: "<", version_name: "5.13", version_value: "6.3", }, ], }, }, ], }, vendor_name: "Linux", }, ], }, }, credits: [ { lang: "en", value: "Budimir Markovic", }, ], data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "eng", value: "A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation.\n\nThe perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability.\n\nWe recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2.\n\n", }, ], }, generator: { engine: "Vulnogram 0.1.0-dev", }, impact: { cvss: [ { 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", }, ], }, problemtype: { problemtype_data: [ { description: [ { cweId: "CWE-416", lang: "eng", value: "CWE-416 Use After Free", }, ], }, ], }, references: { reference_data: [ { name: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd0815f632c24878e325821943edccc7fde947a2", refsource: "MISC", url: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd0815f632c24878e325821943edccc7fde947a2", }, { name: "https://kernel.dance/fd0815f632c24878e325821943edccc7fde947a2", refsource: "MISC", url: "https://kernel.dance/fd0815f632c24878e325821943edccc7fde947a2", }, ], }, source: { discovery: "EXTERNAL", }, }, "nvd.nist.gov": { configurations: { CVE_data_version: "4.0", nodes: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "6.2.8", versionStartIncluding: "6.2", vulnerable: true, }, { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "6.1.21", versionStartIncluding: "5.16", vulnerable: true, }, { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "5.15.104", versionStartIncluding: "5.13", vulnerable: true, }, ], operator: "OR", }, ], }, cve: { CVE_data_meta: { ASSIGNER: "security@google.com", ID: "CVE-2023-2235", }, data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "en", value: "A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation.\n\nThe perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability.\n\nWe recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2.\n\n", }, ], }, problemtype: { problemtype_data: [ { description: [ { lang: "en", value: "CWE-416", }, ], }, ], }, references: { reference_data: [ { name: "https://kernel.dance/fd0815f632c24878e325821943edccc7fde947a2", refsource: "MISC", tags: [ "Patch", ], url: "https://kernel.dance/fd0815f632c24878e325821943edccc7fde947a2", }, { name: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd0815f632c24878e325821943edccc7fde947a2", refsource: "MISC", tags: [ "Mitigation", "Patch", ], url: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd0815f632c24878e325821943edccc7fde947a2", }, ], }, }, impact: { baseMetricV3: { cvssV3: { 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, }, }, lastModifiedDate: "2023-08-25T15:24Z", publishedDate: "2023-05-01T13:15Z", }, }, }
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Sightings
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.