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rxvt-unicode: Buffer overflow


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200503-23 / rxvt-unicode
Release Date March 20, 2005
Latest Revision March 20, 2005: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
x11-terms/rxvt-unicode < 5.3 >= 5.3, < 4.8 All supported architectures

Related bugreports: #84680


rxvt-unicode is vulnerable to a buffer overflow that could lead to the execution of arbitrary code.

2.  Impact Information


rxvt-unicode is a clone of the well known terminal emulator rxvt.


Rob Holland of the Gentoo Linux Security Audit Team discovered that rxvt-unicode fails to properly check input length.


Successful exploitation would allow an attacker to execute arbitrary code with the permissions of the user running rxvt-unicode.

3.  Resolution Information


There is no known workaround at this time.


All rxvt-unicode users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-terms/rxvt-unicode-5.3"

4.  References


Page updated March 20, 2005

Summary: This is a Gentoo Linux Security Advisory

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