CVE-2015-7506 Denial of service in Libnsgif
Attackers can cause a denial of service via a crafted GIF file due to an out-of-bounds read in the Libnsgif library.
- 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-2015-7506?
CVE-2015-7506 is a medium-severity denial of service vulnerability in Libnsgif, published on 18 Feb 2020. 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
The gif_next_LZW function in libnsgif.c in Libnsgif 0.1.2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted LZW stream in a GIF file.
Weakness: CWE-125
Which versions are affected by CVE-2015-7506?
It affects 1 product.
Products include Netsurf-Browser Libnsgif.
How do I fix CVE-2015-7506?
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-2015-7506 being exploited?
There is no known exploitation of CVE-2015-7506 in the wild and no public exploit code.
Other vulnerabilities in Libnsgif
Sources
Also known as DEBIAN-CVE-2015-7506, GHSA-pq64-838x-3vmj.