CVE-2012-6711 (GCVE-0-2012-6711)

Vulnerability from cvelistv5 – Published: 2019-06-18 17:34 – Updated: 2024-08-06 21:36
VLAI?
Summary
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().
Severity ?
7 (High)
CVSS:3.0/AC:H/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N
CWE
  • n/a
Assigner
References
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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