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Ubuntu 24.04 LTS USN-7000-1 Critical: Expat Code Execution Risk

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Calendar Grey September 12, 2024
Scroller Ubuntu
Maintain awareness of Expat security patches for Ubuntu to guarantee optimal system protection and functionality.
Several security issues were fixed in Expat.

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)

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu expat

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

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7000-1

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu expat

Package Information

  https://launchpad.net/ubuntu/+source/expat/2.6.1-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/expat/2.2.9-1ubuntu0.7

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