CVE catalog

CVE-2012-6711

bash: CVE-2012-6711

Severity: High · CVSS 7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Jan 1, 2012, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.53% · Oct 25, 2026

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().

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	bash	sid	`5.3-4`	fixed
Debian	bash	forky	`5.3-4`	fixed
Debian	bash	trixie	`5.2.37-2`	fixed
Debian	bash	bookworm	`5.2.15-2`	fixed
Suse	bash	linux enterprise server for sap applications 12 sp1	`4.2-83.6.1`	fixed
Suse	bash	linux enterprise server 12 sp1-ltss	`4.2-83.6.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	bash	source	sid	`4.3-1`	not yet assigned	Not reported	Not reported
Debian	bash	source	forky	`4.3-1`	not yet assigned	Not reported	Not reported
Debian	bash	source	trixie	`4.3-1`	not yet assigned	Not reported	Not reported
Debian	bash	source	bookworm	`4.3-1`	not yet assigned	Not reported	Not reported
Suse	bash	rpm	linux enterprise server for sap applications 12 sp1	`4.2-83.6.1`	Not reported	SUSE-SU-2019:2976-1	Not reported
Suse	bash	rpm	linux enterprise server 12 sp1-ltss	`4.2-83.6.1`	Not reported	SUSE-SU-2019:2976-1	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[bash]Fixed
Source package: [bash]
Details (2)
- 5.2.15-2+b13 · amd64 · bookworm
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · bookworm; dsa · bash · debian · 12
- 5.2.15-2+b13 · arm64 · bookworm
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · bookworm; dsa · bash · debian · 12
[bash-builtins]Fixed
Source package: [bash]
Details (2)
- 5.2.15-2+b13 · amd64 · bookworm
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · bookworm; dsa · bash · debian · 12
- 5.2.15-2+b13 · arm64 · bookworm
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · bookworm; dsa · bash · debian · 12
[bash-doc]Fixed
Source package: [bash]
Details (2)
- 5.2.15-2 · all · bookworm
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · bookworm; dsa · bash · debian · 12
- 5.2.15-2 · all · bookworm
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · bookworm; dsa · bash · debian · 12
[bash-static]Fixed
Source package: [bash]
Details (2)
- 5.2.15-2+b13 · amd64 · bookworm
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · bookworm; dsa · bash · debian · 12
- 5.2.15-2+b13 · arm64 · bookworm
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · bookworm; dsa · bash · debian · 12

[Debian 13 (Trixie)]

[bash]Fixed
Source package: [bash]
Details (2)
- 5.2.37-2+b9 · amd64 · trixie
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · 13
- 5.2.37-2+b9 · arm64 · trixie
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · 13
[bash-builtins]Fixed
Source package: [bash]
Details (2)
- 5.2.37-2+b9 · amd64 · trixie
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · 13
- 5.2.37-2+b9 · arm64 · trixie
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · 13
[bash-doc]Fixed
Source package: [bash]
Details (2)
- 5.2.37-2 · all · trixie
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · 13
- 5.2.37-2 · all · trixie
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · 13
[bash-static]Fixed
Source package: [bash]
Details (2)
- 5.2.37-2+b9 · amd64 · trixie
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · 13
- 5.2.37-2+b9 · arm64 · trixie
  Fixed · Fixed: 4.3-1
  dsa · bash · debian · 13

Observed: Oct 23, 2026, 5:07:04 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]