==========================================================================
Ubuntu Security Notice USN-2482-1
January 23, 2015
elfutils vulnerability
==========================================================================
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:
elfutils could be made to overwrite files in the root directory if it received
a specially crafted file.
Software Description:
– elfutils: collection of utilities to handle ELF objects
Details:
Alexander Cherepanov discovered that libelf1 incorrectly handled certain
filesystem paths while extracting ar archives. An attacker could use this flaw
to perform a directory traversal attack on the root directory if the process
extracting the ar archive has write access to the root directory.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.10:
libelf1 0.160-0ubuntu2.1
Ubuntu 14.04 LTS:
libelf1 0.158-0ubuntu5.2
Ubuntu 12.04 LTS:
libelf1 0.152-1ubuntu3.1
Ubuntu 10.04 LTS:
libelf1 0.143-1ubuntu0.1
After a standard system update you need to restart applications using libelf1
to make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2482-1
CVE-2014-9447
Package Information:
https://launchpad.net/ubuntu/+source/elfutils/0.160-0ubuntu2.1
https://launchpad.net/ubuntu/+source/elfutils/0.158-0ubuntu5.2
https://launchpad.net/ubuntu/+source/elfutils/0.152-1ubuntu3.1
https://launchpad.net/ubuntu/+source/elfutils/0.143-1ubuntu0.1
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