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. References: https://github.com/Exiv2/exiv2/commit/783b3a6ff15ed6f82a8f8e6c8a6f3b84a9b04d4b https://github.com/Exiv2/exiv2/security/advisories/GHSA-5p8g-9xf3-gfrr
Created exiv2 tracking bugs for this issue: Affects: fedora-all [bug 1978103]
Created mingw-exiv2 tracking bugs for this issue: Affects: fedora-all [bug 1982185]
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2021:4173 https://access.redhat.com/errata/RHSA-2021:4173
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2021-29463