CVE-2012-6711

Summary

CVE	CVE-2012-6711
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2019-06-18 18:15:00 UTC
Updated	2023-11-07 02:13:00 UTC
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().

Risk And Classification

Problem Types: CWE-119

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Application	Gnu	Bash	All	All	All	All
Operating System	Redhat	Enterprise Linux	7.0	All	All	All
Operating System	Redhat	Enterprise Linux	7.0	All	All	All

References

Reference	Source	Link	Tags
USN-4180-1: Bash vulnerability \| Ubuntu security notices \| Ubuntu	UBUNTU	usn.ubuntu.com
Malformed Request	BID	www.securityfocus.com
support.f5.com/csp/article/K05122252	CONFIRM	support.f5.com
support.f5.com/csp/article/K05122252	CONFIRM	support.f5.com
1721071 – (CVE-2012-6711) CVE-2012-6711 bash: heap-based buffer overflow during echo of unsupported characters	MISC	bugzilla.redhat.com	Issue Tracking, Third Party Advisory
myF5		support.f5.com
bash.git - bash	MISC	git.savannah.gnu.org	Mailing List, Patch, Third Party Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

Legacy QID Mappings

376568 F5 BIG-IP Application Security Manager (ASM), Local Traffic Manager (LTM), Access Policy Manager (APM) Bash Vulnerability (K05122252)
670365 EulerOS Security Update for bash (EulerOS-SA-2021-1765)