CVE-2021-32815

Published: 09 August 2021

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The assertion failure is triggered when Exiv2 is used to modify the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when modifying the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `fi`. ### Patches The bug is fixed in version v0.27.5. ### References Regression test and bug fix: #1739 ### For more information Please see our [security policy](https://github.com/Exiv2/exiv2/security/policy) for information about Exiv2 security.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
exiv2
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo)
Released (0.27.3-3ubuntu1.5)
Ubuntu 20.04 LTS (Focal Fossa)
Released (0.27.2-8ubuntu2.6)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (0.25-3.1ubuntu0.18.04.11)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (0.25-2.1ubuntu16.04.7+esm4)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/Exiv2/exiv2/pull/1739/commits/0c17eb33c0a7fad1796ce23b8bbc32067f511aed (fix)
Upstream: https://github.com/Exiv2/exiv2/pull/1739/commits/cdda410e168e51438ca2ac77d9a220a32cf71d34 (regression test)
Upstream: https://github.com/Exiv2/exiv2/pull/1739/commits/04466168b87dedff4ec09c09e9c23f2334ba1734 (adds debug msg)
Upstream: https://github.com/Exiv2/exiv2/pull/1739/commits/c79d83f25fdd09218697d482211a61db87ce5333 (fixes debug msg)