X.Org · X-Window-System · CVE-2006-4655
**Name of the Vulnerable Software and Affected Versions**
X Window System X11R6.4 and earlier
**Description**
A buffer overflow issue exists in the Strcmp function within the XKEYBOARD extension. This allows local users to potentially gain privileges by exploiting a long ` XKB CHARSET` environment variable value.
**Recommendations**
For X Window System X11R6.4 and earlier, consider restricting access to the XKEYBOARD extension as a temporary workaround until a patch is available.