ghsa-x6wj-2wrr-74p6
Vulnerability from github
Published
2022-05-24 17:44
Modified
2022-07-31 00:00
Severity ?
Details
An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit.
{ "affected": [], "aliases": [ "CVE-2020-27170" ], "database_specific": { "cwe_ids": [ "CWE-203" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-03-20T22:15:00Z", "severity": "MODERATE" }, "details": "An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit.", "id": "GHSA-x6wj-2wrr-74p6", "modified": "2022-07-31T00:00:59Z", "published": "2022-05-24T17:44:58Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27170" }, { "type": "WEB", "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.8" }, { "type": "WEB", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f232326f6966cf2a1d1db7bc917a4ce5f9f55f76" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FB6LUXPEIRLZH32YXWZVEZAD4ZL6SDK2" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRTPQE73ANG7D6M4L4PK5ZQDPO4Y2FVD" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG" }, { "type": "WEB", "url": "https://www.openwall.com/lists/oss-security/2021/03/19/2" }, { "type": "WEB", "url": "http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html" }, { "type": "WEB", "url": "http://www.openwall.com/lists/oss-security/2021/03/24/4" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "type": "CVSS_V3" } ] }
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.