USN-2834-1: libxml2 vulnerabilities

Releases

• Ubuntu 15.10
• Ubuntu 15.04
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• libxml2 - GNOME XML library

Details

Kostya Serebryany discovered that libxml2 incorrectly handled certain
malformed documents. If a user or automated system were tricked into
opening a specially crafted document, an attacker could possibly cause
libxml2 to crash, resulting in a denial of service. (CVE-2015-5312,
CVE-2015-7497, CVE-2015-7498, CVE-2015-7499,CVE-2015-7500)

Hugh Davenport discovered that libxml2 incorrectly handled certain
malformed documents. If a user or automated system were tricked into
opening a specially crafted document, an attacker could possibly cause
libxml2 to crash, resulting in a denial of service. (CVE-2015-8241,
CVE-2015-8242)

Hanno Boeck discovered that libxml2 incorrectly handled certain
malformed documents. If a user or automated system were tricked into
opening a specially crafted document, an attacker could possibly cause
libxml2 to crash, resulting in a denial of service. This issue only applied
to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-8317)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 15.10

• libxml2 - 2.9.2+zdfsg1-4ubuntu0.2

Ubuntu 15.04

• libxml2 - 2.9.2+dfsg1-3ubuntu0.2

Ubuntu 14.04

• libxml2 - 2.9.1+dfsg1-3ubuntu4.6

Ubuntu 12.04

• libxml2 - 2.7.8.dfsg-5.1ubuntu4.13

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

• CVE-2015-5312
• CVE-2015-7497
• CVE-2015-7498
• CVE-2015-7499
• CVE-2015-7500
• CVE-2015-8241
• CVE-2015-8242
• CVE-2015-8317

Related notices

• USN-2875-1: libxml2-utils, libxml2-dev, python-libxml2, libxml2, libxml2-udeb, libxml2-doc