Ubuntu Security Notice USN-2726-1
31st August, 2015
expat vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Expat could be made to crash or run programs as your login if it opened a
specially crafted file.
Software description
- expat
– XML parsing C library
Details
It was discovered that Expat incorrectly handled malformed XML data. If a
user or application linked against Expat were tricked into opening a
crafted XML file, an attacker could cause a denial of service, or possibly
execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 15.04:
-
libexpat1
2.1.0-6ubuntu1.1
-
lib64expat1
2.1.0-6ubuntu1.1
- Ubuntu 14.04 LTS:
-
libexpat1
2.1.0-4ubuntu1.1
-
lib64expat1
2.1.0-4ubuntu1.1
- Ubuntu 12.04 LTS:
-
libexpat1
2.0.1-7.2ubuntu1.2
-
lib64expat1
2.0.1-7.2ubuntu1.2
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart any applications linked
against Expat to effect the necessary changes.