USN-3504-1: libxml2 vulnerability
5 December 2017
libxml2 could be made to crash if it opened a specially crafted file.
Releases
Packages
- libxml2 - GNOME XML library
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 versions:
Ubuntu 17.10
-
libxml2
-
2.9.4+dfsg1-4ubuntu1.1
-
libxml2-utils
-
2.9.4+dfsg1-4ubuntu1.1
-
python-libxml2
-
2.9.4+dfsg1-4ubuntu1.1
-
python3-libxml2
-
2.9.4+dfsg1-4ubuntu1.1
Ubuntu 17.04
-
libxml2
-
2.9.4+dfsg1-2.2ubuntu0.2
-
libxml2-utils
-
2.9.4+dfsg1-2.2ubuntu0.2
-
python-libxml2
-
2.9.4+dfsg1-2.2ubuntu0.2
-
python3-libxml2
-
2.9.4+dfsg1-2.2ubuntu0.2
Ubuntu 16.04
-
libxml2
-
2.9.3+dfsg1-1ubuntu0.4
-
libxml2-utils
-
2.9.3+dfsg1-1ubuntu0.4
-
python-libxml2
-
2.9.3+dfsg1-1ubuntu0.4
Ubuntu 14.04
-
libxml2
-
2.9.1+dfsg1-3ubuntu4.11
-
libxml2-utils
-
2.9.1+dfsg1-3ubuntu4.11
-
python-libxml2
-
2.9.1+dfsg1-3ubuntu4.11
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-3504-2: libxml2, python-libxml2, libxml2-utils
- USN-3739-1: libxml2, python-libxml2, libxml2-doc, libxml2-dev, libxml2-utils, python3-libxml2, libxml2-udeb