CVE-2021-39534 Memory corruption in n/a
A heap-based buffer overflow in libslax allows attackers to execute arbitrary code or cause a denial of service.
- 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-2021-39534?
CVE-2021-39534 is a high-severity memory corruption vulnerability in n/a, 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 libslax through v0.22.1. slaxIsCommentStart() in slaxlexer.c has a heap-based buffer overflow.
Weakness: CWE-787
Which versions are affected by CVE-2021-39534?
It affects 1 product.
Products include Juniper Libslax.
How do I fix CVE-2021-39534?
No fix has been published for CVE-2021-39534 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-2021-39534 being exploited?
There is no known exploitation of CVE-2021-39534 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-4wgj-77qr-7qgf.