==========================================================================
Ubuntu Security Notice USN-7000-1
September 12, 2024
expat vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Expat.
Software Description:
- expat: XML parsing C library
Details:
Shang-Hung Wan discovered that Expat 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 did 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, CVE-2024-45492)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
   expat                           2.6.1-2ubuntu0.1
   libexpat1                       2.6.1-2ubuntu0.1
Ubuntu 20.04 LTS
   expat                           2.2.9-1ubuntu0.7
   libexpat1                       2.2.9-1ubuntu0.7
Ubuntu 18.04 LTS
   expat                           2.2.5-3ubuntu0.9+esm1
                                   Available with Ubuntu Pro
   libexpat1                       2.2.5-3ubuntu0.9+esm1
                                   Available with Ubuntu Pro
Ubuntu 16.04 LTS
   expat                           2.1.0-7ubuntu0.16.04.5+esm9
                                   Available with Ubuntu Pro
   lib64expat1                     2.1.0-7ubuntu0.16.04.5+esm9
                                   Available with Ubuntu Pro
   libexpat1                       2.1.0-7ubuntu0.16.04.5+esm9
                                   Available with Ubuntu Pro
Ubuntu 14.04 LTS
   expat                           2.1.0-4ubuntu1.4+esm9
                                   Available with Ubuntu Pro
   lib64expat1                     2.1.0-4ubuntu1.4+esm9
                                   Available with Ubuntu Pro
   libexpat1                       2.1.0-4ubuntu1.4+esm9
                                   Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-7000-1
   CVE-2024-45490, CVE-2024-45491, CVE-2024-45492
Package Information:
   https://launchpad.net/ubuntu/+source/expat/2.6.1-2ubuntu0.1
   https://launchpad.net/ubuntu/+source/expat/2.2.9-1ubuntu0.7