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CVE-2021-37619

Published: 9 August 2021

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing 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 insert. The bug is fixed in version v0.27.5.

Notes

AuthorNote
leosilva
bionic, xenial not affected, code not present.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
exiv2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal
Released (0.27.2-8ubuntu2.6)
hirsute
Released (0.27.3-3ubuntu1.5)
impish
Released (0.27.3-3ubuntu4)
jammy
Released (0.27.3-3ubuntu4)
trusty Does not exist

upstream Needs triage

xenial Not vulnerable
(code not present)
Patches:
upstream: https://github.com/Exiv2/exiv2/pull/1752/commits/a7b920bdbde1ee15a1a470d743dbae69ee398c75 (regression test)
upstream: https://github.com/Exiv2/exiv2/pull/1752/commits/9be257340193dbe3fb810aa33531c40ae9df6414 (fix)