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Ubuntu 22.04 LTS: USN-7000-2 Critical Expat Denial Of Service

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Calendar Grey September 17, 2024
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Multiple vulnerabilities addressed in Expat library. Ensure your Ubuntu 22.04 LTS is updated for essential security patches.
Several security issues were fixed in Expat.

Summary

Several security issues were fixed in Expat.

Software Description:

- expat: XML parsing C library

Details:

USN-7000-1 fixed vulnerabilities in Expat. This update

provides the corresponding updates for Ubuntu 22.04 LTS.

Original advisory 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 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, CVE-2024-45492)

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu updates expat

Update Instructions

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

Ubuntu 22.04 LTS
   expat                           2.4.7-1ubuntu0.4
   libexpat1                       2.4.7-1ubuntu0.4

In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-7000-2

  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-7000-2

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu updates expat

Package Information

  https://launchpad.net/ubuntu/+source/expat/2.4.7-1ubuntu0.4

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