Exiv2 is vulnerable to denial of service. 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
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git.launchpad.net/ubuntu-cve-tracker/tree/active/CVE-2021-29464
github.com/Exiv2/exiv2/commit/f9308839198aca5e68a65194f151a1de92398f54
github.com/Exiv2/exiv2/security/advisories/GHSA-jgm9-5fw5-pw9p
lists.fedoraproject.org/archives/list/[email protected]/message/K3HKXR6JOVKMBE4HY4FDXNVZGNCQG6T3/
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