CVE-2017-17973 Use after free in n/a
A heap-based use-after-free in LibTIFF's tiff2pdf utility could allow attackers to execute arbitrary code or cause a 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-2017-17973?
CVE-2017-17973 is a high-severity use after free vulnerability in Libtiff Libtiff, published on 29 Dec 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
In LibTIFF 4.0.8, there is a heap-based use-after-free in the t2p_writeproc function in tiff2pdf.c. NOTE: there is a third-party report of inability to reproduce this issue
Weakness: CWE-416
Which versions are affected by CVE-2017-17973?
It affects 1 product.
Products include Libtiff Libtiff.
How do I fix CVE-2017-17973?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-17973 being exploited?
There is no known exploitation of CVE-2017-17973 in the wild and no public exploit code.
Other vulnerabilities in Libtiff Libtiff
Sources
Also known as GHSA-pf49-rpj2-8mg3, ROOT-OS-DEBIAN-12-CVE-2017-17973, UBUNTU-CVE-2017-17973.