CVE-2012-6711
CVE-2012-6711
| Published Date | 2024-11-07 |
|---|---|
| Product | centos |
| Severity | High (7.8) |
| Component | bash |
| Affected Versions | CentOS 7 |
| Patched Versions | 4.2.46-35_ol002.el7 |
CVE Details
NVD Listing: https://nvd.nist.gov/vuln/detail/CVE-2012-6711
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().