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Ubuntu 24.04 LTS libpng Critical Crash Due To Malformed PNG File USN-7993-1

ubuntu
Calendar Grey February 3, 2026
Dist Ubuntu Esm H88
libpng in Ubuntu could experience a critical DoS due to crafted PNG files, necessitating urgent updates. Stay secure!
libpng could be made to crash if it opened a specially crafted file.

Summary

libpng could be made to crash if it opened a specially crafted file.

Software Description:

- libpng1.6: PNG (Portable Network Graphics) file library

Details:

It was discovered that libpng incorrectly handled memory when processing

certain malformed PNG files. If a user or automated system were tricked

into opening a specially crafted PNG file, an attacker could use this issue

to cause libpng to crash, resulting in a denial of service.

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu libpng memory issue

Update Instructions

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

Ubuntu 24.04 LTS
  libpng16-16t64                  1.6.43-5ubuntu0.4

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

References

https://ubuntu.com/security/notices/USN-7993-1

CVE-2025-28162, CVE-2025-28164

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7993-1

Topics%20covered

Topics Covered

security advisory critical DoS Ubuntu libpng memory issue

Package Information

https://launchpad.net/ubuntu/+source/libpng1.6/1.6.43-5ubuntu0.4

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