CVE-2021-29458

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.

• CWE-125

• https://github.com/Exiv2/exiv2/issues/1530Exploit, Third Party Advisory
• https://github.com/Exiv2/exiv2/pull/1536Patch, Third Party Advisory
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-57jj-75fm-9rq5Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/01/msg00004.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/
• https://security.gentoo.org/glsa/202312-06
• https://github.com/Exiv2/exiv2/issues/1530Exploit, Third Party Advisory
• https://github.com/Exiv2/exiv2/pull/1536Patch, Third Party Advisory
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-57jj-75fm-9rq5Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/01/msg00004.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2XQT5F5IINTDYDAFGVGQZ7PMMLG7I5ZZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2A5GMJEXQ5Q76JK6F6VKK5JYCLVFGKN/
• https://security.gentoo.org/glsa/202312-06

Published

Apr 19, 2021

Last Modified

Jun 17, 2026

Status

Modified

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