Packages
- libxfont -
- xorg-server -
Details
Multiple overflows were discovered in the XFree86-Misc, XInput-Misc,
TOG-CUP, EVI, and MIT-SHM extensions which did not correctly validate
function arguments. An authenticated attacker could send specially
crafted requests and gain root privileges. (CVE-2007-5760, CVE-2007-6427,
CVE-2007-6428, CVE-2007-6429)
It was discovered that the X.org server did not use user privileges when
attempting to open security policy files. Local attackers could exploit
this to probe for files in directories they would not normally be able
to access. (CVE-2007-5958)
It was discovered that the PCF font handling code did not correctly
validate the size of fonts. An authenticated attacker could load a
specially crafted font and gain additional privileges. (
Multiple overflows were discovered in the XFree86-Misc, XInput-Misc,
TOG-CUP, EVI, and MIT-SHM extensions which did not correctly validate
function arguments. An authenticated attacker could send specially
crafted requests and gain root privileges. (CVE-2007-5760, CVE-2007-6427,
CVE-2007-6428, CVE-2007-6429)
It was discovered that the X.org server did not use user privileges when
attempting to open security policy files. Local attackers could exploit
this to probe for files in directories they would not normally be able
to access. (CVE-2007-5958)
It was discovered that the PCF font handling code did not correctly
validate the size of fonts. An authenticated attacker could load a
specially crafted font and gain additional privileges. (CVE-2008-0006)
Update instructions
After a standard system upgrade you need to restart your session to effect the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
Ubuntu Release | Package Version | ||
---|---|---|---|
7.10 gutsy | libxfont1 – 1:1.3.0-0ubuntu1.1 | ||
xserver-xorg-core – 2:1.3.0.0.dfsg-12ubuntu8.1 | |||
7.04 feisty | libxfont1 – 1:1.2.7-1ubuntu1.1 | ||
xserver-xorg-core – 2:1.2.0-3ubuntu8.1 | |||
6.10 edgy | libxfont1 – 1:1.2.0-0ubuntu3.2 | ||
xserver-xorg-core – 1:1.1.1-0ubuntu12.3 | |||
6.06 dapper | libxfont1 – 1:1.0.0-0ubuntu3.4 | ||
xserver-xorg-core – 1:1.0.2-0ubuntu10.8 |
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.