CVE-2021-37615
Description
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A null pointer dereference was found in Exiv2 versions v0.27.4 and earlier. The null pointer dereference is triggered when Exiv2 is used to print 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 printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.
CVSS Details
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Weaknesses 1
Affected Products 3
| Vendor | Product | Version | Range |
|---|---|---|---|
| exiv2 | exiv2 | * | ≤0.27.4 |
| fedoraproject | fedora | 33 | any |
| fedoraproject | fedora | 34 | any |
References 5
- github.com https://github.com/Exiv2/exiv2/pull/1758
- github.com https://github.com/Exiv2/exiv2/security/advisories/GHSA-h9x9-4f77-336w
- 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/1758