CVE-2021-36531 Memory corruption in n/a
A heap overflow in ngiflib allows attackers to execute arbitrary code or cause denial of service when parsing GIF files in no-file mode.
- 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
- None listed
What is CVE-2021-36531?
CVE-2021-36531 is a high-severity memory corruption vulnerability in n/a, published on 27 Aug 2021. 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
ngiflib 0.4 has a heap overflow in GetByte() at ngiflib.c:70 in NGIFLIB_NO_FILE mode, GetByte() reads memory buffer without checking the boundary.
Weakness: CWE-787
Which versions are affected by CVE-2021-36531?
It affects 1 product.
Products include Miniupnp Project Ngiflib.
How do I fix CVE-2021-36531?
No fix has been published for CVE-2021-36531 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-36531 being exploited?
There is no known exploitation of CVE-2021-36531 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qpjc-r4c8-485x.