CVE-2021-39564 Memory corruption in n/a
A heap-buffer-overflow in swftools allows attackers to execute arbitrary code via crafted SWF files.
- 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
- None listed
What is CVE-2021-39564?
CVE-2021-39564 is a high-severity memory corruption vulnerability in Swftools Swftools, published on 20 Sep 2021. 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
An issue was discovered in swftools through 20200710. A heap-buffer-overflow exists in the function swf_DumpActions() located in swfaction.c. It allows an attacker to cause code Execution.
Weakness: CWE-787
Which versions are affected by CVE-2021-39564?
It affects 1 product.
Products include Swftools Swftools.
How do I fix CVE-2021-39564?
No fix has been published for CVE-2021-39564 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-2021-39564 being exploited?
There is no known exploitation of CVE-2021-39564 in the wild and no public exploit code.
Other vulnerabilities in Swftools Swftools
Sources
Also known as GHSA-j56h-v988-6xx4, UBUNTU-CVE-2021-39564.