Ubuntu Security Notice USN-3010-1
20th June, 2016
expat vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Several security issues were fixed in Expat.
Software description
- expat
– XML parsing C library
Details
It was discovered that Expat unexpectedly called srand in certain
circumstances. This could reduce the security of calling applications.
(CVE-2012-6702)
It was discovered that Expat incorrectly handled seeding the random number
generator. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2016-5300)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.04 LTS:
-
libexpat1
2.1.0-7ubuntu0.16.04.2
-
lib64expat1
2.1.0-7ubuntu0.16.04.2
- Ubuntu 15.10:
-
libexpat1
2.1.0-7ubuntu0.15.10.2
-
lib64expat1
2.1.0-7ubuntu0.15.10.2
- Ubuntu 14.04 LTS:
-
libexpat1
2.1.0-4ubuntu1.3
-
lib64expat1
2.1.0-4ubuntu1.3
- Ubuntu 12.04 LTS:
-
libexpat1
2.0.1-7.2ubuntu1.4
-
lib64expat1
2.0.1-7.2ubuntu1.4
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.