CVE-2021-29458

 

Published at: - 19-04-2021 09:15

Last modified: - 10-01-2023 08:15

Total changes: - 7

Description

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 v0.27.3 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 v0.27.4.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://github.com/Exiv2/exiv2/pull/1536
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-57jj-75fm-9rq5
• https://github.com/Exiv2/exiv2/issues/1530
• FEDORA-2021-10d7331a31-Mailing List, Third Party Advisory
• FEDORA-2021-be94728b95-Mailing List, Third Party Advisory
• [debian-lts-announce] 20230110 [SECURITY] [DLA 3265-1] exiv2 security update-

 

Keywords

NVD

 

CVE-2021-29458

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures