USN-3504-2: libxml2 vulnerability
Ubuntu Security Notice USN-3504-2
5th December, 2017
libxml2 vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 12.04 LTS
Summary
curl could be made to crash if it received specially crafted
input.
Software description
- libxml2
– GNOME XML library
Details
USN-3504-1 fixed a vulnerability in libxml2. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Wei Lei discovered that libxml2 incorrecty handled certain parameter
entities. An attacker could use this issue with specially constructed XML
data to cause libxml2 to consume resources, leading to a denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 12.04 LTS:
-
libxml2
2.7.8.dfsg-5.1ubuntu4.19
-
libxml2-utils
2.7.8.dfsg-5.1ubuntu4.19
-
python-libxml2
2.7.8.dfsg-5.1ubuntu4.19
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-3504-2: libxml2 vulnerability
