USN-7001-2: xmltok library vulnerabilities

USN-7001-2: xmltok library vulnerabilities
17 September 2024

Several security issues were fixed in libxmltok.

Releases
Ubuntu 24.04 LTS

Packages
libxmltok - XML Parser Toolkit, developer libraries

Details
USN-7001-1 fixed vulnerabilities in xmltol library. This update
provides the corresponding updates for Ubuntu 24.04 LTS.

Original advisory details:

Shang-Hung Wan discovered that Expat, contained within the xmltok library,
did not properly handle certain function calls when a negative input
length was provided. An attacker could use this issue to cause a denial of
service or possibly execute arbitrary code. (CVE-2024-45490)

Shang-Hung Wan discovered that Expat, contained within the xmltok library,
did not properly handle the potential for an integer overflow on 32-bit
platforms. An attacker could use this issue to cause a denial of service
or possibly execute arbitrary code. (CVE-2024-45491)

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

Ubuntu 24.04
libxmltok1t64 - 1.2-4.1ubuntu2.24.0.4.1+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.