VDB
CVE-2015-8370
CVE-2015-8370
PUBLISHED
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.
EPSS 4.70% · 89.6th percentile
Risk Scores
EPSS Score
4.70%
89.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:14.04:LTS | grub2 | 0, 2.00-19ubuntu2, 2.00-19ubuntu3 |
Exploit Intelligence
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html (circl)
- SUSE-SU-2015:2387 (circl)
- openSUSE-SU-2015:2392 (circl)
- openSUSE-SU-2016:0036 (circl)
- 79358 (circl)
- openSUSE-SU-2015:2375 (circl)
- 1034422 (circl)
- 20151215 Back to 28: Grub2 Authentication Bypass 0-Day [CVE-2015-8370] (circl)
- [oss-security] 20151215 Back to 28: Grub2 Authentication Bypass 0-Day [CVE-2015-8370] (circl)
- SUSE-SU-2015:2386 (circl)
…and 13 more exploits
Timeline
- Dec 11, 2015 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 20, 2022 EPSS Score
- Sep 3, 2022 EPSS Score
- Oct 26, 2022 EPSS Score
- Dec 18, 2022 EPSS Score
- Feb 8, 2023 EPSS Score
- Apr 2, 2023 EPSS Score
- May 25, 2023 EPSS Score
- Jul 16, 2023 EPSS Score
- Sep 7, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2015-8370 third-party-advisory
- https://twitter.com/lostinsecurity/status/674925944524640257 third-party-advisory
- http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html third-party-advisory
- https://ubuntu.com/security/notices/USN-2836-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2015-8370 third-party-advisory