Your submission was sent successfully! Close

You have successfully unsubscribed! Close

CVE-2021-37622

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 infinite loop was found in Exiv2 versions v0.27.4 and earlier. The infinite loop 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 deleting the IPTC data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-d I rm`). The bug is fixed in version v0.27.5.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
exiv2
Launchpad, Ubuntu, Debian
impish
Released (0.27.3-3ubuntu4)
jammy
Released (0.27.3-3ubuntu4)
trusty Does not exist

upstream Needs triage

bionic
Released (0.25-3.1ubuntu0.18.04.11)
focal
Released (0.27.2-8ubuntu2.6)
hirsute
Released (0.27.3-3ubuntu1.5)
xenial
Released (0.25-2.1ubuntu16.04.7+esm4)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
Patches:
upstream: https://github.com/Exiv2/exiv2/pull/1788/commits/61cb1a1ca15282bee76c33eb9abdb416ac366471 (regression test)
upstream: https://github.com/Exiv2/exiv2/pull/1788/commits/ffe5eb517dad93845e62144d8e53f52b17420ecd (fix)
upstream: https://github.com/Exiv2/exiv2/pull/1788/commits/19026fab2bc2b6dee2150f38153feb65a41cea17 (cleanups)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H