Ubuntu Security Notice USN-5760-2
December 05, 2022
libxml2 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 16.04 ESM
– Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in libxml2.
Software Description:
– 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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 ESM:
libxml2 2.9.3+dfsg1-1ubuntu0.7+esm4
libxml2-utils 2.9.3+dfsg1-1ubuntu0.7+esm4
Ubuntu 14.04 ESM:
libxml2 2.9.1+dfsg1-3ubuntu4.13+esm4
libxml2-utils 2.9.1+dfsg1-3ubuntu4.13+esm4
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5760-2
https://ubuntu.com/security/notices/USN-5760-1
CVE-2022-40303, CVE-2022-40304
