CVE-2021-37622

MEDIUM
Published Aug 9, 20214y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 9, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-835

Affected Products 4

VendorProductVersionRange
exiv2exiv2* ≤0.27.4
fedoraprojectfedora33any
fedoraprojectfedora34any
debiandebian_linux10.0any

References 6

  • github.com https://github.com/Exiv2/exiv2/pull/1788
    PatchThird Party Advisory
  • github.com https://github.com/Exiv2/exiv2/security/advisories/GHSA-9jh3-fcc3-g6hv
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html
    Mailing ListThird Party Advisory
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
  • security.gentoo.org https://security.gentoo.org/glsa/202312-06

Remediation

  • github.com https://github.com/Exiv2/exiv2/pull/1788
    PatchThird Party Advisory