CVE-2020-6839 Memory corruption in n/a
A stack-based buffer overflow in mruby allows attackers to execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-6839?
CVE-2020-6839 is a critical memory corruption vulnerability in n/a, published on 11 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In mruby 2.1.0, there is a stack-based buffer overflow in mrb_str_len_to_dbl in string.c.
Weakness: CWE-787
Which versions are affected by CVE-2020-6839?
It affects 1 product.
Products include Mruby Mruby.
How do I fix CVE-2020-6839?
No fix has been published for CVE-2020-6839 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-2020-6839 being exploited?
There is no known exploitation of CVE-2020-6839 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-24vp-v896-cq3c, UBUNTU-CVE-2020-6839.