Ubuntu 1191-1: libXfont vulnerability

    Date15 Aug 2011
    Posted ByLinuxSecurity Advisories
    libXfont could be made to run programs as an administrator if it opened a specially crafted file.
    Ubuntu Security Notice USN-1191-1
    August 15, 2011
    libxfont vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 11.04
    - Ubuntu 10.10
    - Ubuntu 10.04 LTS
    libXfont could be made to run programs as an administrator if it opened a
    specially crafted file.
    Software Description:
    - libxfont: X11 font rasterisation library
    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.
    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.
    Package Information:
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