USN-3356-1: Expat vulnerability
Ubuntu Security Notice USN-3356-1
19th July, 2017
expat vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Expat could be made to hang if it received specially crafted input.
Software description
- expat
– XML parsing C library
Details
It was discovered that Expat incorrectly handled certain external entities.
A remote attacker could possibly use this issue to cause Expat to hang,
resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 17.04:
-
libexpat1
2.2.0-2ubuntu0.1
-
lib64expat1
2.2.0-2ubuntu0.1
- Ubuntu 16.10:
-
libexpat1
2.2.0-1ubuntu0.1
-
lib64expat1
2.2.0-1ubuntu0.1
- Ubuntu 16.04 LTS:
-
libexpat1
2.1.0-7ubuntu0.16.04.3
-
lib64expat1
2.1.0-7ubuntu0.16.04.3
- Ubuntu 14.04 LTS:
-
libexpat1
2.1.0-4ubuntu1.4
-
lib64expat1
2.1.0-4ubuntu1.4
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
Source: USN-3356-1: Expat vulnerability
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