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Ubuntu 26.04 libexif Important DoS Vulnerabilities USN-8531-1

ubuntu
Calendar Grey July 13, 2026
Dist Ubuntu Esm H88
Multiple security issues in libexif for Ubuntu require immediate updates to prevent potential attacks.
Several security issues were fixed in libexif.

Summary

Several security issues were fixed in libexif.

Software Description:

- libexif: library to parse EXIF files

Details:

It was discovered that libexif had an integer overflow in its MakerNote

decoder when called with a zero-length buffer. An attacker could possibly

use this issue to cause a denial of service or obtain sensitive

information. (CVE-2026-32775)

It was discovered that libexif had an integer overflow in its Nikon

MakerNote handler on 32-bit systems. A local attacker could possibly use

this issue to cause a denial of service or obtain sensitive information.

(CVE-2026-40385)

It was discovered that libexif had an integer underflow in its size

checking for Fuji and Olympus MakerNote decoding. An attacker could

possibly use this issue to cause a denial of service or obtain sensitive

information. (CVE-2026-40386)

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu important attack libexif

Update Instructions

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

Ubuntu 26.04 LTS
  libexif12                       0.6.25-2ubuntu0.1

Ubuntu 24.04 LTS
  libexif12                       0.6.24-1ubuntu0.24.04.1

Ubuntu 22.04 LTS
  libexif12                       0.6.24-1ubuntu0.22.04.1

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

References

https://ubuntu.com/security/notices/USN-8531-1

CVE-2026-32775, CVE-2026-40385, CVE-2026-40386

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8531-1

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu important attack libexif

Package Information

https://launchpad.net/ubuntu/+source/libexif/0.6.25-2ubuntu0.1
https://launchpad.net/ubuntu/+source/libexif/0.6.24-1ubuntu0.24.04.1
https://launchpad.net/ubuntu/+source/libexif/0.6.24-1ubuntu0.22.04.1

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