| Description: | Description:
The remote host is missing an update to libgd2
announced via advisory USN-473-1.
A security issue affects the following Ubuntu releases:
Ubuntu 6.06 LTS
Ubuntu 6.10
Ubuntu 7.04
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
Details follow:
A buffer overflow was discovered in libgd2's font renderer. By tricking
an application using libgd2 into rendering a specially crafted string
with a JIS encoded font, a remote attacker could read heap memory or
crash the application, leading to a denial of service. (CVE-2007-0455)
Xavier Roche discovered that libgd2 did not correctly validate PNG
callback results. If an application were tricked into processing a
specially crafted PNG image, it would monopolize CPU resources. Since
libgd2 is often used in PHP and Perl web applications, this could lead
to a remote denial of service. (CVE-2007-2756)
Solution:
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 6.06 LTS:
libgd2-noxpm 2.0.33-2ubuntu5.2
libgd2-xpm 2.0.33-2ubuntu5.2
Ubuntu 6.10:
libgd2-noxpm 2.0.33-4ubuntu2.1
libgd2-xpm 2.0.33-4ubuntu2.1
Ubuntu 7.04:
libgd2-noxpm 2.0.34~
rc1-2ubuntu1.1
libgd2-xpm 2.0.34~
rc1-2ubuntu1.1
After a standard system upgrade you need to reboot your computer to
effect the necessary changes.
http://www.securityspace.com/smysecure/catid.html?in=USN-473-1
Risk factor : High
CVSS Score:
7.5
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