Ubuntu Security Notice 2393-1 - HD Moore discovered that Wget contained a path traversal vulnerability when downloading symlinks using FTP. A malicious remote FTP server or a man in the middle could use this issue to cause Wget to overwrite arbitrary files, possibly leading to arbitrary code execution.
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Ubuntu Security Notice USN-2393-1
October 30, 2014
wget vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary:
Wget could be made to overwrite files.
Software Description:
- wget: retrieves files from the web
Details:
HD Moore discovered that Wget contained a path traversal vulnerability
when downloading symlinks using FTP. A malicious remote FTP server or a man
in the middle could use this issue to cause Wget to overwrite arbitrary
files, possibly leading to arbitrary code execution.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.10:
wget 1.15-1ubuntu1.14.10.1
Ubuntu 14.04 LTS:
wget 1.15-1ubuntu1.14.04.1
Ubuntu 12.04 LTS:
wget 1.13.4-2ubuntu1.2
Ubuntu 10.04 LTS:
wget 1.12-1.1ubuntu2.2
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2393-1
CVE-2014-4877
Package Information:
https://launchpad.net/ubuntu/+source/wget/1.15-1ubuntu1.14.10.1
https://launchpad.net/ubuntu/+source/wget/1.15-1ubuntu1.14.04.1
https://launchpad.net/ubuntu/+source/wget/1.13.4-2ubuntu1.2
https://launchpad.net/ubuntu/+source/wget/1.12-1.1ubuntu2.2