CVE-2009-0749 Use after free in n/a
Attackers can cause a denial of service via crafted GIF images in OptiPNG due to a use-after-free vulnerability in the GIF reading function.
- 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-2009-0749?
CVE-2009-0749 is a high-severity use after free vulnerability in Opensuse Opensuse, published on 2 Mar 2009. 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
Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.
Weakness: CWE-416
Which versions are affected by CVE-2009-0749?
It affects 3 products.
Products include Opensuse Opensuse, Optipng Project Optipng, Suse Linux Enterprise.
How do I fix CVE-2009-0749?
Upgrade to a fixed version.
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-2009-0749 being exploited?
There is no known exploitation of CVE-2009-0749 in the wild and no public exploit code.
Other vulnerabilities in Opensuse Opensuse
Sources
Also known as DEBIAN-CVE-2009-0749, GHSA-pmrr-7vvq-vpj6.