CVE-2026-49413

{"id": "CVE-2026-49413", "cveTags": [], "metrics": {}, "affected": [{"source": "secteam@freebsd.org", "affectedData": [{"vendor": "FreeBSD", "modules": ["linux"], "product": "FreeBSD", "versions": [{"status": "affected", "version": "15.0-RELEASE", "lessThan": "p10", "versionType": "release"}, {"status": "affected", "version": "14.4-RELEASE", "lessThan": "p6", "versionType": "release"}, {"status": "affected", "version": "14.3-RELEASE", "lessThan": "p15", "versionType": "release"}], "defaultStatus": "unknown"}]}], "published": "2026-06-27T09:16:24.040", "references": [{"url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:30.linux.asc", "source": "secteam@freebsd.org"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "secteam@freebsd.org", "description": [{"lang": "en", "value": "CWE-266"}]}], "descriptions": [{"lang": "en", "value": "The Linuxulator determined whether a binary was set-user-ID or set-group-ID by checking the P_SUGID process flag. During execve(2), this flag is not yet set at the point where the auxiliary vector is constructed, so AT_SECURE was incorrectly set to zero for set-user-ID and set-group-ID executables.\n\nAn unprivileged local user can inject a shared library via LD_PRELOAD into a set-user-ID or set-group-ID Linux binary, gaining the privileges of that binary."}], "lastModified": "2026-06-27T09:16:24.040", "sourceIdentifier": "secteam@freebsd.org"}