CVE-2021-26198 Use after free in n/a
A use-after-free vulnerability in the JerryScript JavaScript engine allows attackers to potentially 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-2021-26198?
CVE-2021-26198 is a medium-severity use after free vulnerability in Jerryscript Jerryscript, published on 10 Jun 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 JerryScript 2.4.0. There is a SEVG in ecma_deref_bigint in ecma-helpers.c file.
Which versions are affected by CVE-2021-26198?
It affects 1 product.
Products include Jerryscript Jerryscript.
How do I fix CVE-2021-26198?
No fix has been published for CVE-2021-26198 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-2021-26198 being exploited?
There is no known exploitation of CVE-2021-26198 in the wild and no public exploit code.
Other vulnerabilities in Jerryscript Jerryscript
Sources
Also known as GHSA-93vf-q5pw-fx2x, UBUNTU-CVE-2021-26198.