2 lines
7.7 KiB
JSON
2 lines
7.7 KiB
JSON
{"affected":[{"affectedData":[{"product":"Linux kernel","vendor":"Linux","versions":[{"lessThan":"v5.13-rc4","status":"affected","version":"trunk","versionType":"custom"},{"lessThan":"v5.12.4","status":"affected","version":"linux-5.12.y","versionType":"custom"},{"lessThan":"v5.11.21","status":"affected","version":"linux-5.11.y","versionType":"custom"},{"lessThan":"v5.10.37","status":"affected","version":"linux-5.10.y","versionType":"custom"},{"lessThan":"5.7*","status":"affected","version":"v5.7-rc1","versionType":"custom"}]}],"source":"security@ubuntu.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"4E433B72-3E3A-435E-9A66-80D28868BDF2","versionEndExcluding":"5.10.37","versionStartIncluding":"5.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"8CBB94EC-EC33-4464-99C5-03E5542715F0","versionEndExcluding":"5.11.21","versionStartIncluding":"5.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"D8C7052F-1B7B-4327-9C2B-84EBF3243838","versionEndExcluding":"5.12.4","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.13:-:*:*:*:*:*:*","matchCriteriaId":"8F0E7012-0BA3-4E6A-ADE9-57973CBDEE28","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*","matchCriteriaId":"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*","matchCriteriaId":"96AC23B2-D46A-49D9-8203-8E1BEDCA8532","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*","matchCriteriaId":"DA610E30-717C-4700-9F77-A3C9244F3BFD","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*","matchCriteriaId":"902B8056-9E37-443B-8905-8AA93E2447FB","vulnerable":true},{"criteria":"cpe:2.3:o:canonical:ubuntu_linux:20.10:*:*:*:*:*:*:*","matchCriteriaId":"338B3AAC-C147-4A31-95E7-6E8A6FB4B3FC","vulnerable":true},{"criteria":"cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:*","matchCriteriaId":"8EF1C1CC-3FAE-4DE3-BC41-E5B14D5721F4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e (\"bpf: Fix alu32 const subreg bound tracking on bitwise operations\") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 (\"bpf: Verifier, do explicit ALU32 bounds tracking\") (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 (\"bpf:Fix a verifier failure with xor\") ( 5.10-rc1)."},{"lang":"es","value":"El seguimiento de los límites de la ALU32 de eBPF para las operaciones por bits (AND, OR y XOR) en el kernel de Linux no actualizaba correctamente los límites de 32 bits, lo que podía convertirse en lecturas y escrituras fuera de los límites en el kernel de Linux y, por tanto, en la ejecución de código arbitrario. Este problema fue corregido a través del commit 049c4e13714e (\"bpf: Fix alu32 const subreg bound tracking on bitwise operations\") (v5.13-rc4) y retrocedido a los kernels estables en v5.12.4, v5.11.21 y v5.10.37. Los problemas de AND/OR fueron introducidos por el commit 3f50f132d840 (\"bpf: Verifier, do explicit ALU32 bounds tracking\") (5.7-rc1) y la variante XOR fue introducida por 2921c90d4718 (\"bpf:Fix a verifier failure with xor\") ( 5.10-rc1)"}],"id":"CVE-2021-3490","lastModified":"2026-06-17T04:05:11.737","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":10.0,"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":6.0,"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":"2021-06-04T02:15:07.150","references":[{"source":"security@ubuntu.com","tags":["Exploit","Third Party Advisory","VDB Entry"],"url":"http://packetstormsecurity.com/files/164015/Linux-eBPF-ALU32-32-bit-Invalid-Bounds-Tracking-Local-Privilege-Escalation.html"},{"source":"security@ubuntu.com","tags":["Patch","Vendor Advisory"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=049c4e13714ecbca567b4d5f6d563f05d431c80e"},{"source":"security@ubuntu.com","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20210716-0004/"},{"source":"security@ubuntu.com","tags":["Third Party Advisory"],"url":"https://ubuntu.com/security/notices/USN-4949-1"},{"source":"security@ubuntu.com","tags":["Third Party Advisory"],"url":"https://ubuntu.com/security/notices/USN-4950-1"},{"source":"security@ubuntu.com","tags":["Mailing List","Patch","Third Party Advisory"],"url":"https://www.openwall.com/lists/oss-security/2021/05/11/11"},{"source":"security@ubuntu.com","tags":["Third Party Advisory","VDB Entry"],"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-606/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory","VDB Entry"],"url":"http://packetstormsecurity.com/files/164015/Linux-eBPF-ALU32-32-bit-Invalid-Bounds-Tracking-Local-Privilege-Escalation.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=049c4e13714ecbca567b4d5f6d563f05d431c80e"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20210716-0004/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://ubuntu.com/security/notices/USN-4949-1"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://ubuntu.com/security/notices/USN-4950-1"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Patch","Third Party Advisory"],"url":"https://www.openwall.com/lists/oss-security/2021/05/11/11"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"],"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-606/"}],"sourceIdentifier":"security@ubuntu.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-20"},{"lang":"en","value":"CWE-787"}],"source":"security@ubuntu.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-125"},{"lang":"en","value":"CWE-787"}],"source":"nvd@nist.gov","type":"Primary"}]}
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