Exiv2 Segmentation Faults in Exiv2::EpsImage::writeMetadata() via crafted EPS file

Vulnerability Description

Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. An out-of-bounds read was found in Exiv2 versions 0.28.5 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. The bug is fixed in version 0.28.6.

References

• https://github.com/Exiv2/exiv2/security/advisories/GHSA-496f-x7cq-cq39
• https://github.com/Exiv2/exiv2/commit/e737332427711f15bcdc4e903203d6b7493eaec0