Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An infinite loop is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.5.
Created exiv2 tracking bugs for this issue:
Affects: fedora-all [bug 1992204]
Created mingw-exiv2 tracking bugs for this issue:
Affects: fedora-all [bug 1992203]
The attack vector for this CVE is local, not network based. Exiv2 would require manual execution with specific flags, and requires user interaction on a crafted file to be able to exploit this flaw and is not bound to the network. This CVE is a very similar CVE to CVE-2021-37616 which is correctly labeled as AV:L not AV:N.