fkie_cve-2020-8835
Vulnerability from fkie_nvd
Published
2020-04-02 18:15
Modified
2024-11-21 05:39
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)
References
Impacted products
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operator: "AND", }, { nodes: [ { cpeMatch: [ { criteria: "cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*", matchCriteriaId: "5921A877-18BF-43FE-915C-D226E140ACFC", vulnerable: true, }, ], negate: false, operator: "OR", }, { cpeMatch: [ { criteria: "cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:*", matchCriteriaId: "7296A1F2-D315-4FD5-8A73-65C480C855BE", vulnerable: false, }, ], negate: false, operator: "OR", }, ], operator: "AND", }, ], cveTags: [], descriptions: [ { lang: "en", value: "In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)", }, { lang: "es", value: "En el kernel de Linux versiones 5.5.0 y más recientes, el verificador bpf (kernel/bpf/verifier.c) no restringió apropiadamente los límites de registro para operaciones de 32 bits, conllevando a lecturas y escrituras fuera de límites en la memoria del kernel. La vulnerabilidad también afecta a la serie estable de Linux versión 5.4, comenzando con la versión v5.4.7, ya que el commit de introducción fue respaldado en esa derivación. Esta vulnerabilidad fue corregida en las versiones 5.6.1, 5.5.14 y 5.4.29. (el problema también se conoce como ZDI-CAN-10780)", }, ], id: "CVE-2020-8835", lastModified: "2024-11-21T05:39:32.163", metrics: { cvssMetricV2: [ { acInsufInfo: false, baseSeverity: "HIGH", cvssData: { accessComplexity: "LOW", accessVector: "LOCAL", authentication: "NONE", availabilityImpact: "COMPLETE", baseScore: 7.2, confidentialityImpact: "COMPLETE", integrityImpact: "COMPLETE", vectorString: "AV:L/AC:L/Au:N/C:C/I:C/A:C", version: "2.0", }, exploitabilityScore: 3.9, impactScore: 10, obtainAllPrivilege: false, obtainOtherPrivilege: false, obtainUserPrivilege: false, source: "nvd@nist.gov", type: "Primary", userInteractionRequired: false, }, ], cvssMetricV31: [ { cvssData: { attackComplexity: "HIGH", attackVector: "LOCAL", availabilityImpact: "HIGH", baseScore: 7.8, baseSeverity: "HIGH", confidentialityImpact: "HIGH", integrityImpact: "HIGH", privilegesRequired: "LOW", scope: "CHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", version: "3.1", }, exploitabilityScore: 1.1, impactScore: 6, source: "security@ubuntu.com", type: "Secondary", }, { 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", }, ], }, published: "2020-04-02T18:15:18.943", references: [ { source: "security@ubuntu.com", tags: [ "Exploit", "Mailing List", "Third Party Advisory", ], url: "http://www.openwall.com/lists/oss-security/2021/07/20/1", }, { source: "security@ubuntu.com", tags: [ "Patch", "Vendor Advisory", ], url: "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef", }, { source: "security@ubuntu.com", tags: [ "Patch", "Vendor Advisory", ], url: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef", }, { source: "security@ubuntu.com", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/", }, { source: "security@ubuntu.com", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/", }, { source: "security@ubuntu.com", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/", }, { source: "security@ubuntu.com", url: "https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/", }, { source: "security@ubuntu.com", tags: [ "Third Party Advisory", ], url: "https://security.netapp.com/advisory/ntap-20200430-0004/", }, { source: "security@ubuntu.com", tags: [ "Third Party Advisory", ], url: "https://usn.ubuntu.com/4313-1/", }, { source: "security@ubuntu.com", tags: [ "Third Party Advisory", ], url: "https://usn.ubuntu.com/usn/usn-4313-1", }, { source: "security@ubuntu.com", tags: [ "Mailing List", "Patch", "Third Party Advisory", ], url: "https://www.openwall.com/lists/oss-security/2020/03/30/3", }, { source: "security@ubuntu.com", tags: [ "Third Party Advisory", ], url: "https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Exploit", "Mailing List", "Third Party Advisory", ], url: "http://www.openwall.com/lists/oss-security/2021/07/20/1", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Patch", "Vendor Advisory", ], url: "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Patch", "Vendor Advisory", ], url: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", url: "https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Third Party Advisory", ], url: "https://security.netapp.com/advisory/ntap-20200430-0004/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Third Party Advisory", ], url: "https://usn.ubuntu.com/4313-1/", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Third Party Advisory", ], url: "https://usn.ubuntu.com/usn/usn-4313-1", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Mailing List", "Patch", "Third Party Advisory", ], url: "https://www.openwall.com/lists/oss-security/2020/03/30/3", }, { source: "af854a3a-2127-422b-91ae-364da2661108", tags: [ "Third Party Advisory", ], url: "https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-results", }, ], sourceIdentifier: "security@ubuntu.com", vulnStatus: "Modified", weaknesses: [ { description: [ { lang: "en", value: "CWE-125", }, { lang: "en", value: "CWE-787", }, ], source: "nvd@nist.gov", type: "Primary", }, ], }
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.