{"id":"CVE-2020-27170","revision":"f754c7cf24d2476588515c667f9eef34","records":[{"revision":"f754c7cf24d2476588515c667f9eef34","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2020-27170","aliases":[],"title":"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 info…","description":"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.","state":0,"publishedAt":"2021-03-20T21:30:36+00:00","modifiedAt":"2026-10-08T21:03:24.204+00:00","affected":[{"ecosystem":"Vendor product","name":"n/a","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"n/a\",\n                    \"vendor\": \"n/a\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"n/a\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.8","https://www.openwall.com/lists/oss-security/2021/03/19/2","https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f232326f6966cf2a1d1db7bc917a4ce5f9f55f76","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QRTPQE73ANG7D6M4L4PK5ZQDPO4Y2FVD/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FB6LUXPEIRLZH32YXWZVEZAD4ZL6SDK2/","http://www.openwall.com/lists/oss-security/2021/03/24/4","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/","https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html","http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2020-27170","license":"CVE Program Terms of Use","key":"cve-program:CVE-2020-27170","identifiers":["CVE-2020-27170"]},"retained":false,"historicalAffected":[]}],"coverage":[]}