CVE-2021-29463

Vulnerability Description

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. 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.

CVSS Score

Affected Products

Related Weaknesses (CWE)

References

• https://github.com/Exiv2/exiv2/commit/783b3a6ff15ed6f82a8f8e6c8a6f3b84a9b04d4bPatchThird Party Advisory
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-5p8g-9xf3-gfrrThird 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/783b3a6ff15ed6f82a8f8e6c8a6f3b84a9b04d4bPatchThird Party Advisory
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-5p8g-9xf3-gfrrThird 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