CVE-2021-32617

 

Published at: - 17-05-2021 08:15

Last modified: - 13-05-2022 09:45

Total changes: - 6

Description

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An inefficient algorithm (quadratic complexity) was found in Exiv2 versions v0.27.3 and earlier. The inefficient algorithm 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, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.4. 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 `rm`.

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/1657
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-w8mv-g8qq-36mj
• FEDORA-2021-d1d5a0bf0f-Mailing List, Third Party Advisory
• FEDORA-2021-8253c78bd7-Mailing List, Third Party Advisory
• FEDORA-2021-bdba47348c-Mailing List, Third Party Advisory
• FEDORA-2021-8917c5d9d2-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2021-32617

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures