Vulnerability Description
Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. 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. Please see our security policy for information about Exiv2 security.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Exiv2 | Exiv2 | < 0.27.4 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-7569-phvm-vwc2PatchThird Party Advisory
- https://github.com/Exiv2/exiv2/security/policyRelease NotesThird Party Advisory
- https://github.com/github/advisory-review/pull/1587Broken LinkThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00028.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202312-06Third Party Advisory
- https://www.debian.org/security/2021/dsa-4958Third Party Advisory
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-7569-phvm-vwc2PatchThird Party Advisory
- https://github.com/Exiv2/exiv2/security/policyRelease NotesThird Party Advisory
- https://github.com/github/advisory-review/pull/1587Broken LinkThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/08/msg00028.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
FAQ
What is CVE-2021-29473?
CVE-2021-29473 is a vulnerability with a CVSS score of 2.5 (LOW). Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. Exiv2...
How severe is CVE-2021-29473?
CVE-2021-29473 has been rated LOW with a CVSS base score of 2.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29473?
Check the references section above for vendor advisories and patch information. Affected products include: Exiv2 Exiv2, Fedoraproject Fedora, Debian Debian Linux.