Description
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.
References (3)
Core 3
Core References
Exploit, Third Party Advisory
https://github.com/Exiv2/exiv2/issues/187
Third Party Advisory vendor-advisory
https://usn.ubuntu.com/3852-1/
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html
Scores
CVSS v3
5.5
EPSS
0.0021
EPSS Percentile
42.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (6)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
18.10
debian/debian_linux
10.0
exiv2/exiv2
0.26
Published
Dec 13, 2017
Tracked Since
Feb 18, 2026