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().
References
Link | Resource |
---|---|
http://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel&id=863d31ae775d56b785dc5b0105b6d251515d81d5 | Mailing List Patch Third Party Advisory |
http://www.securityfocus.com/bid/108824 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1721071 | Issue Tracking Third Party Advisory |
https://support.f5.com/csp/article/K05122252 | |
https://support.f5.com/csp/article/K05122252?utm_source=f5support&%3Butm_medium=RSS | |
https://usn.ubuntu.com/4180-1/ | |
http://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel&id=863d31ae775d56b785dc5b0105b6d251515d81d5 | Mailing List Patch Third Party Advisory |
http://www.securityfocus.com/bid/108824 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1721071 | Issue Tracking Third Party Advisory |
https://support.f5.com/csp/article/K05122252 | |
https://support.f5.com/csp/article/K05122252?utm_source=f5support&%3Butm_medium=RSS | |
https://usn.ubuntu.com/4180-1/ |
Configurations
History
21 Nov 2024, 01:46
Type | Values Removed | Values Added |
---|---|---|
CVSS |
v2 : v3 : |
v2 : 4.6
v3 : 7.0 |
References | () http://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel&id=863d31ae775d56b785dc5b0105b6d251515d81d5 - Mailing List, Patch, Third Party Advisory | |
References | () http://www.securityfocus.com/bid/108824 - | |
References | () https://bugzilla.redhat.com/show_bug.cgi?id=1721071 - Issue Tracking, Third Party Advisory | |
References | () https://support.f5.com/csp/article/K05122252 - | |
References | () https://support.f5.com/csp/article/K05122252?utm_source=f5support&%3Butm_medium=RSS - | |
References | () https://usn.ubuntu.com/4180-1/ - |
07 Nov 2023, 02:13
Type | Values Removed | Values Added |
---|---|---|
References |
|
|
Information
Published : 2019-06-18 18:15
Updated : 2024-11-21 01:46
NVD link : CVE-2012-6711
Mitre link : CVE-2012-6711
CVE.ORG link : CVE-2012-6711
JSON object : View
Products Affected
redhat
- enterprise_linux
gnu
- bash
CWE
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer