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Ubuntu 11.04 LTS: USN-1191-1 Moderate: libXfont Privilege Escalation

ubuntu
Calendar Grey August 15, 2011
Scroller Ubuntu
Ubuntu Security Notice USN-1191-1 highlights a libXfont vulnerability in various releases, risking privilege escalation or code execution. Users should update now to secure patched versions
libXfont could be made to run programs as an administrator if it opened a specially crafted file.

Summary

libXfont could be made to run programs as an administrator if it opened a

specially crafted file.

Software Description:

- libxfont: X11 font rasterisation library

Details:

Tomas Hoger discovered that libXfont incorrectly handled certain malformed

compressed fonts. An attacker could use a specially crafted font file to

cause libXfont to crash, or possibly execute arbitrary code in order to

gain privileges.

Topics%20covered

Topics Covered

security advisory moderate security issue update privilege escalation Ubuntu libxfont

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.04:
  libxfont1                       1:1.4.3-2ubuntu0.1

Ubuntu 10.10:
  libxfont1                       1:1.4.2-1ubuntu0.1

Ubuntu 10.04 LTS:
  libxfont1                       1:1.4.1-1ubuntu0.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-1191-1

CVE-2011-2895

Severity
important
Lowest
Low
Medium
High
Critical

August 15, 2011

Topics%20covered

Topics Covered

security advisory moderate security issue update privilege escalation Ubuntu libxfont

Package Information

https://launchpad.net/ubuntu/+source/libxfont/1:1.4.3-2ubuntu0.1
https://launchpad.net/ubuntu/+source/libxfont/1:1.4.2-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libxfont/1:1.4.1-1ubuntu0.1

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