CVE-2017-17669: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 1.6% chance of exploitation in the next 30 days.

There is a heap-based buffer over-read in the Exiv2::Internal::PngChunk::keyTXTChunk function of pngchunk_int.cpp in Exiv2 0.26. A crafted PNG file will lead to a remote denial of service attack.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only
• Debian Debian Linux: version 10.0 only
• EXIV2 EXIV2: version 0.26 only

Published 2017-12-13. Last modified 2026-06-17.