CVE-2017-17669 Memory corruption in n/a
A heap-based buffer over-read in Exiv2 allows attackers to cause a denial of service via a crafted PNG file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-17669?
CVE-2017-17669 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 13 Dec 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2017-17669?
It affects 3 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Exiv2 Exiv2.
How do I fix CVE-2017-17669?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-17669 being exploited?
There is no known exploitation of CVE-2017-17669 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2017-17669, GHSA-4635-wwr6-rxx5, UBUNTU-CVE-2017-17669.