CVE-2021-39528 Use after free in n/a
A double free vulnerability in libredwg allows attackers to cause denial of service or potentially execute arbitrary code via crafted DWG files.
- 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-2021-39528?
CVE-2021-39528 is a high-severity use after free vulnerability in Gnu Libredwg, published on 20 Sep 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
An issue was discovered in libredwg through v0.10.1.3751. dwg_free_MATERIAL_private() in dwg.spec has a double free.
Weakness: CWE-415
Which versions are affected by CVE-2021-39528?
It affects 1 product.
Products include Gnu Libredwg.
How do I fix CVE-2021-39528?
No fix has been published for CVE-2021-39528 yet. Limit exposure of the affected software until one is available.
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-2021-39528 being exploited?
There is no known exploitation of CVE-2021-39528 in the wild and no public exploit code.
Other vulnerabilities in Gnu Libredwg
Sources
Also known as GHSA-86j3-7436-wx4w.