Total vulnerabilities in the database
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().
| Software | From | Fixed in |
|---|---|---|
| gnu / bash | 4.2 | 4.3.x |
| redhat / enterprise_linux | 7.0 | 7.0.x |