Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2021-32815

Published: 9 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 Severity Score

5.5

Score breakdown

Status

Package Release Status
exiv2
Launchpad, Ubuntu, Debian
bionic
Released (0.25-3.1ubuntu0.18.04.11)
focal
Released (0.27.2-8ubuntu2.6)
upstream Needs triage

trusty Does not exist

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)
impish
Released (0.27.3-3ubuntu4)
jammy
Released (0.27.3-3ubuntu4)
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)

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