CVE-2015-8370
At a glance
- Source
- NVD
- EPSS
- EPSS 1.09 % · percentile 65 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
Description
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.
Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/134831/Grub2-Authentication-Bypass.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00043.html
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00003.html
- http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html
- http://www.securityfocus.com/bid/79358
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00037.html
- http://www.securitytracker.com/id/1034422
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00040.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.openwall.com/lists/oss-security/2015/12/15/6
- http://www.securityfocus.com/archive/1/537115/100/0/threaded
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00039.html
- http://seclists.org/fulldisclosure/2015/Dec/69
- https://security.gentoo.org/glsa/201512-03
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173703.html
- http://www.ubuntu.com/usn/USN-2836-1
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174049.html
- http://rhn.redhat.com/errata/RHSA-2015-2623.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00044.html
- http://www.debian.org/security/2015/dsa-3421
- http://www.openwall.com/lists/oss-security/2024/01/15/3
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 2.0 | MEDIUM 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2015-8254
- GCVE · GCVE-0-2015-8370
CERT-FR advisories
- CERTFR-2016-AVI-028 — Multiples vulnérabilités dans Oracle Sun Systems Products Suite · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:gnu:grub2:1.98:*:*:*:*:*:*:*cpe:2.3:a:gnu:grub2:1.99:*:*:*:*:*:*:*cpe:2.3:a:gnu:grub2:2.00:*:*:*:*:*:*:*cpe:2.3:a:gnu:grub2:2.01:*:*:*:*:*:*:*cpe:2.3:a:gnu:grub2:2.02:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |