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Ubuntu Security Notice USN-2507-1
February 23, 2015

e2fsprogs vulnerabilities

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:

e2fsprogs could be made to crash or run programs as an administrator
if it processed a specially crafted filesystem image.

Software Description:

• e2fsprogs: ext2/ext3/ext4 file system utilities

Details:

Jose Duart discovered that e2fsprogs incorrectly handled invalid block
group descriptor data. A local attacker could use this issue with a
crafted filesystem image to possibly execute arbitrary code.
(CVE-2015-0247, CVE-2015-1572)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.10:
e2fsprogs 1.42.10-1.1ubuntu1.2

Ubuntu 14.04 LTS:
e2fsprogs 1.42.9-3ubuntu1.2

Ubuntu 12.04 LTS:
e2fsprogs 1.42-1ubuntu2.2

Ubuntu 10.04 LTS:
e2fsprogs 1.41.11-1ubuntu2.3

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2507-1
CVE-2015-0247, CVE-2015-1572

Package Information:
https://launchpad.net/ubuntu/+source/e2fsprogs/1.42.10-1.1ubuntu1.2
https://launchpad.net/ubuntu/+source/e2fsprogs/1.42.9-3ubuntu1.2
https://launchpad.net/ubuntu/+source/e2fsprogs/1.42-1ubuntu2.2
https://launchpad.net/ubuntu/+source/e2fsprogs/1.41.11-1ubuntu2.3

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