1. Ubuntu Security Notices
  2. USN-2812-1

USN-2812-1: libxml2 vulnerabilities

Publication date

16 November 2015

Overview

Several security issues were fixed in libxml2.

Releases

Packages

Details

Florian Weimer discovered that libxml2 incorrectly handled certain XML
data. If a user or automated system were tricked into opening a specially
crafted document, an attacker could possibly cause resource consumption,
resulting in a denial of service. This issue only affected
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-1819)

Michal Zalewski discovered that libxml2 incorrectly handled certain XML
data. 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 affected
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-7941)

Kostya Serebryany discovered that libxml2 incorrectly handled certain XML
data. If a user or automated system were tricked into opening a specially
crafted document, an...

Florian Weimer discovered that libxml2 incorrectly handled certain XML
data. If a user or automated system were tricked into opening a specially
crafted document, an attacker could possibly cause resource consumption,
resulting in a denial of service. This issue only affected
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-1819)

Michal Zalewski discovered that libxml2 incorrectly handled certain XML
data. 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 affected
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-7941)

Kostya Serebryany discovered that libxml2 incorrectly handled certain XML
data. 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, or possibly execute arbitrary code.
(CVE-2015-7942)

Gustavo Grieco discovered that libxml2 incorrectly handled certain XML
data. 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 affected
Ubuntu 14.04 LTS. (CVE-2015-8035)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
15.10 wily libxml2 –  2.9.2+zdfsg1-4ubuntu0.1
15.04 vivid libxml2 –  2.9.2+dfsg1-3ubuntu0.1
14.04 trusty libxml2 –  2.9.1+dfsg1-3ubuntu4.5
12.04 precise libxml2 –  2.7.8.dfsg-5.1ubuntu4.12

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References

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