Vulnerability Description
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Exiv2 | Exiv2 | < 0.27.4 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54PatchThird Party Advisory
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9pThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202312-06
- https://github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54PatchThird Party Advisory
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9pThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202312-06
FAQ
What is CVE-2021-29464?
CVE-2021-29464 is a vulnerability with a CVSS score of 3.3 (LOW). Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A heap buffer overflow was found in Exiv2 versions v0.27.3 and earlier. The h...
How severe is CVE-2021-29464?
CVE-2021-29464 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29464?
Check the references section above for vendor advisories and patch information. Affected products include: Exiv2 Exiv2, Fedoraproject Fedora.