Ubuntu Security Notices
USN-5760-2

USN-5760-2: libxml2 vulnerabilities

Publication date

5 December 2022

Overview

Several security issues were fixed in libxml2.

Releases

16.04 LTS 14.04 LTS

Packages

libxml2 - GNOME XML library

Details

USN-5760-1 fixed vulnerabilities in libxml2. This update provides the
corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to expose sensitive information
or cause a crash. (CVE-2022-40303)

It was discovered that libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2022-40304)

USN-5760-1 fixed vulnerabilities in libxml2. This update provides the
corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to expose sensitive information
or cause a crash. (CVE-2022-40303)

It was discovered that libxml2 incorrectly handled certain XML files.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2022-40304)

Update instructions

In general, a standard system update will 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
16.04 xenial	libxml2 – 2.9.3+dfsg1-1ubuntu0.7+esm4
16.04 xenial	libxml2-utils – 2.9.3+dfsg1-1ubuntu0.7+esm4
14.04 trusty	libxml2 – 2.9.1+dfsg1-3ubuntu4.13+esm4
14.04 trusty	libxml2-utils – 2.9.1+dfsg1-3ubuntu4.13+esm4

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References

USN-5760-1

USN-5760-1