CVE-2017-13727 Denial of service in n/a
A crafted TIFF file triggers an assertion abort in LibTIFF, causing a remote denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-13727?
CVE-2017-13727 is a medium-severity denial of service vulnerability in Libtiff Libtiff, published on 29 Aug 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
There is a reachable assertion abort in the function TIFFWriteDirectoryTagSubifd() in LibTIFF 4.0.8, related to tif_dirwrite.c and a SubIFD tag. A crafted input will lead to a remote denial of service attack.
Weakness: CWE-617
Which versions are affected by CVE-2017-13727?
It affects 1 product.
Products include Libtiff Libtiff.
How do I fix CVE-2017-13727?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-13727 being exploited?
There is no known exploitation of CVE-2017-13727 in the wild and no public exploit code.
Other vulnerabilities in Libtiff Libtiff
Sources
Also known as DEBIAN-CVE-2017-13727, GHSA-6wx6-w4jp-vgm2, UBUNTU-CVE-2017-13727.