GLSA 200609-04: LibXfont: Multiple integer overflows
| Severity: | normal |
| Title: | LibXfont: Multiple integer overflows |
| Date: | 09/06/2006 |
| Bugs: | |
| ID: | 200609-04 |
Synopsis
A buffer overflow was discovered in the PCF font parser, potentially resulting in the execution of arbitrary code.Background
libXfont is the X.Org Xfont library, some parts are based on the FreeType code base.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| x11-libs/libXfont | < 1.2.0-r1 | >= 1.2.0-r1 | All supported architectures |
Description
Several integer overflows have been found in the PCF font parser.
Impact
A local attacker could possibly execute arbitrary code or crash the Xserver by enticing a user to load a specially crafted PCF font file.
Workaround
Do not use untrusted PCF Font files.
Resolution
All libXfont users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/libXfont-1.2.0-r1"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.