Ubuntu Security Notice USN-982-1 September 02, 2010
wget vulnerability
CVE-2010-2252
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A security issue affects the following Ubuntu releases:
Ubuntu 6.06 LTS
Ubuntu 8.04 LTS
Ubuntu 9.04
Ubuntu 9.10
Ubuntu 10.04 LTS
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 6.06 LTS:
wget 1.10.2-1ubuntu1.2
Ubuntu 8.04 LTS:
wget 1.10.2-3ubuntu1.2
Ubuntu 9.04:
wget 1.11.4-2ubuntu1.2
Ubuntu 9.10:
wget 1.11.4-2ubuntu2.1
Ubuntu 10.04 LTS:
wget 1.12-1.1ubuntu2.1
In general, a standard system update will make all the necessary changes.
ATTENTION: This update changes previous behaviour by ignoring the filename
supplied by the server during redirects. To re-enable previous behaviour,
use the new –trust-server-names option.
Details follow:
It was discovered that Wget would use filenames provided by the server when
following 3xx redirects. If a user or automated system were tricked into
downloading a file from a malicious site, a remote attacker could create
the file with an arbitrary name (e.g. .wgetrc), and possibly run arbitrary
code.