CVE-2012-6711
GNU Bash Heap-Based Buffer Overflow
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().
INFO
Published Date :
June 18, 2019, 6:15 p.m.
Last Modified :
Nov. 7, 2023, 2:13 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2012-6711 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2012-6711.
| URL | 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/ |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
API integration to present CVE per image in CVS format
Shell
None
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2012-6711 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2012-6711 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://support.f5.com/csp/article/K05122252?utm_source=f5support&%3Butm_medium=RSS [No types assigned] Removed Reference MITRE https://support.f5.com/csp/article/K05122252?utm_source=f5support&utm_medium=RSS -
CVE Modified by [email protected]
Nov. 11, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4180-1/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 MITRE AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Added Reference https://support.f5.com/csp/article/K05122252?utm_source=f5support&utm_medium=RSS [No Types Assigned] -
CVE Modified by [email protected]
Oct. 07, 2019
Action Type Old Value New Value Added Reference https://support.f5.com/csp/article/K05122252 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 20, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/108824 [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 19, 2019
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel&id=863d31ae775d56b785dc5b0105b6d251515d81d5 No Types Assigned http://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel&id=863d31ae775d56b785dc5b0105b6d251515d81d5 Mailing List, Patch, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1721071 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1721071 Issue Tracking, Third Party Advisory Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:gnu:bash:*:*:*:*:*:*:*:* versions from (including) 4.2 up to (including) 4.3 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2012-6711 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2012-6711
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile