libxml2 vulnerabilities

10 February 2020

libxml2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 19.10
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS
• Ubuntu 14.04 ESM
• Ubuntu 12.04 ESM

Summary

Several security issues were fixed in libxml2.

Software Description

• libxml2 - GNOME XML library

Details

It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a denial of service. (CVE-2019-19956, CVE-2020-7595)

Update instructions

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

Ubuntu 19.10

libxml2 - 2.9.4+dfsg1-7ubuntu3.1

libxml2-utils - 2.9.4+dfsg1-7ubuntu3.1

Ubuntu 18.04 LTS

libxml2 - 2.9.4+dfsg1-6.1ubuntu1.3

libxml2-utils - 2.9.4+dfsg1-6.1ubuntu1.3

Ubuntu 16.04 LTS

libxml2 - 2.9.3+dfsg1-1ubuntu0.7

libxml2-utils - 2.9.3+dfsg1-1ubuntu0.7

Ubuntu 14.04 ESM

libxml2 - 2.9.1+dfsg1-3ubuntu4.13+esm1

libxml2-utils - 2.9.1+dfsg1-3ubuntu4.13+esm1

Ubuntu 12.04 ESM

libxml2 - 2.7.8.dfsg-5.1ubuntu4.22

libxml2-utils - 2.7.8.dfsg-5.1ubuntu4.22

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

• CVE-2019-19956
• CVE-2020-7595