{"id":"CVE-2015-8370","details":"Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grub_username_get function in grub-core/normal/auth.c or the (2) grub_password_get function in lib/crypto.c, which trigger an \"Off-by-two\" or \"Out of bounds overwrite\" memory error.","modified":"2026-04-16T06:20:20.589894703Z","published":"2015-12-16T21:59:04Z","related":["SUSE-SU-2015:2385-1","SUSE-SU-2015:2386-1","SUSE-SU-2015:2387-1","SUSE-SU-2015:2399-1","openSUSE-SU-2024:10078-1"],"references":[{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2015-2623.html"},{"type":"ADVISORY","url":"http://www.debian.org/security/2015/dsa-3421"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-2836-1"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201512-03"},{"type":"EVIDENCE","url":"http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html"},{"type":"FIX","url":"http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173703.html"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174049.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00037.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00039.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00040.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00041.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00043.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00044.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00003.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/134831/Grub2-Authentication-Bypass.html"},{"type":"WEB","url":"http://seclists.org/fulldisclosure/2015/Dec/69"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2015/12/15/6"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2024/01/15/3"},{"type":"WEB","url":"http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/537115/100/0/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/bid/79358"},{"type":"WEB","url":"http://www.securitytracker.com/id/1034422"}],"schema_version":"1.7.5"}