Ubuntu Security Notice 2507-1 - 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.
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Ubuntu Security Notice USN-2507-1
February 23, 2015
e2fsprogs vulnerabilities
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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:
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:
https://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