USN-5422-1: libxml2 vulnerabilities

Releases

• Ubuntu 22.04 LTS
• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• libxml2 - GNOME XML library

Details

Shinji Sato discovered that libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to cause a crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 14.04 ESM, and Ubuntu 16.04 ESM. (CVE-2022-23308)

It was discovered that libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to cause a crash or execute
arbitrary code. (CVE-2022-29824)

Update instructions

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

Ubuntu 22.04

• libxml2 - 2.9.13+dfsg-1ubuntu0.1
• libxml2-utils - 2.9.13+dfsg-1ubuntu0.1

Ubuntu 21.10

• libxml2 - 2.9.12+dfsg-4ubuntu0.2
• libxml2-utils - 2.9.12+dfsg-4ubuntu0.2

Ubuntu 20.04

• libxml2-utils - 2.9.10+dfsg-5ubuntu0.20.04.3
• libxml2 - 2.9.10+dfsg-5ubuntu0.20.04.3

Ubuntu 18.04

• libxml2-utils - 2.9.4+dfsg1-6.1ubuntu1.6
• libxml2 - 2.9.4+dfsg1-6.1ubuntu1.6

Ubuntu 16.04

• libxml2 - 2.9.3+dfsg1-1ubuntu0.7+esm2
  Available with Ubuntu Pro
• libxml2-utils - 2.9.3+dfsg1-1ubuntu0.7+esm2
  Available with Ubuntu Pro

Ubuntu 14.04

• libxml2 - 2.9.1+dfsg1-3ubuntu4.13+esm3
  Available with Ubuntu Pro
• libxml2-utils - 2.9.1+dfsg1-3ubuntu4.13+esm3
  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

• CVE-2022-29824
• CVE-2022-23308

Related notices

• USN-5324-1: libxml2-dev, libxml2-doc, python-libxml2, libxml2-utils, libxml2, python3-libxml2