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CVE-2021-29457

Published: 19 April 2021

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, 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 v0.27.4.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
exiv2
Launchpad, Ubuntu, Debian
bionic
Released (0.25-3.1ubuntu0.18.04.7)
focal
Released (0.27.2-8ubuntu2.2)
groovy
Released (0.27.3-3ubuntu0.2)
hirsute
Released (0.27.3-3ubuntu1.1)
impish
Released (0.27.3-3ubuntu2)
jammy
Released (0.27.3-3ubuntu2)
precise Does not exist

trusty Does not exist

upstream Needs triage

xenial
Released (0.25-2.1ubuntu16.04.7+esm1)