VDB
CVE-2012-6711
CVE-2012-6711
REJECTED
CVSS 7 HIGH
A heap-based buffer overflow exists in GNU Bash before 4.3 when wide characters, not supported by the current locale set in the LC_CTYPE environment variable, are printed through the echo built-in function. A local attacker, who can provide data to print through the "echo -e" built-in function, may use this flaw to crash a script or execute code with the privileges of the bash process. This occurs because ansicstr() in lib/sh/strtrans.c mishandles u32cconv().
EPSS 0.53% · 44.1th percentile
Risk Scores
CVSS 3.0
7
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.53%
44.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | bash | 0, 4.4-5ubuntu1, 4.4.18-1ubuntu1 |
| Ubuntu:16.04:LTS | bash | 0, 4.3-14ubuntu1, 4.3-14ubuntu1.1 |
Timeline
- Jun 18, 2019 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 30, 2022 EPSS Score
- May 22, 2022 EPSS Score
- Jul 16, 2022 EPSS Score
- Sep 7, 2022 EPSS Score
- Oct 31, 2022 EPSS Score
- Dec 23, 2022 EPSS Score
- Feb 15, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 9, 2023 EPSS Score
- Jun 2, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2012-6711 third-party-advisory
- https://ubuntu.com/security/notices/USN-4180-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2012-6711 third-party-advisory