vulnerability
F5 Networks: CVE-2012-6711: K05122252: Bash vulnerability CVE-2012-6711
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:P/I:P/A:P) | Jun 18, 2019 | Oct 8, 2019 | Apr 23, 2026 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Jun 18, 2019
Added
Oct 8, 2019
Modified
Apr 23, 2026
Description
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().
Solution
f5-big-ip-upgrade-latest
Rapid7 Labs
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