[USN-8103-1] Exiv2 vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-8103-1
March 18, 2026

exiv2 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Exiv2.

Software Description:
- exiv2: EXIF/IPTC/XMP metadata manipulation tool

Details:

It was discovered that Exiv2 did not correctly handle reading certain
buffers. An attacker could possibly use this issue to leak sensitive
information. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04
LTS. (CVE-2020-18771)

Wen Cheng discovered that Exiv2 did not correctly handle certain memory
allocation. If a user or system were tricked into opening a specially
crafted file, an attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
(CVE-2020-18899)

It was discovered that Exiv2 did not correctly handle writing certain
metadata. If a user or system were tricked into opening a specially crafted
file, an attacker could possibly use this issue to cause a denial of
service. (CVE-2025-54080)

It was discovered that Exiv2 did not correctly handle parsing certain
metadata. If a user or system were tricked into opening a specially crafted
file, an attacker could possibly use this issue to cause a denial of
service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS,
Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2025-55304)

It was discovered that Exiv2 did not correctly handle parsing certain
images. If a user or system were tricked into opening a specially crafted
file, an attacker could possibly use this issue to cause a denial of
service. (CVE-2026-25884)

It was discovered that Exiv2 did not correctly handle previewing certain
images. An attacker could possibly use this issue to cause a denial of
service. (CVE-2026-27596)

It was discovered that Exiv2 did not correctly handle certain integer
arithmetic. An attacker could possibly use this issue to cause a denial of
service. (CVE-2026-27631)

Update instructions:

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

Ubuntu 25.10
  exiv2                           0.28.5+dfsg-1ubuntu0.1

Ubuntu 24.04 LTS
  exiv2                           0.27.6-1ubuntu0.1

Ubuntu 22.04 LTS
  exiv2                           0.27.5-3ubuntu1.1

Ubuntu 20.04 LTS
  exiv2                           0.27.2-8ubuntu2.7+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  exiv2                           0.25-3.1ubuntu0.18.04.11+esm1
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  exiv2                           0.25-2.1ubuntu16.04.7+esm5
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-8103-1
  CVE-2020-18771, CVE-2020-18899, CVE-2025-54080, CVE-2025-55304,
  CVE-2026-25884, CVE-2026-27596, CVE-2026-27631

Package Information:
  https://launchpad.net/ubuntu/+source/exiv2/0.28.5+dfsg-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/exiv2/0.27.6-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/exiv2/0.27.5-3ubuntu1.1
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