CVE-2021-26194 Use after free in n/a
A heap-use-after-free in JerryScript allows attackers to execute arbitrary code or cause denial of service via crafted JavaScript.
- 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-2021-26194?
CVE-2021-26194 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 heap-use-after-free in ecma_is_lexical_environment in the ecma-helpers.c file.
Weakness: CWE-416
Which versions are affected by CVE-2021-26194?
It affects 1 product.
Products include Jerryscript Jerryscript.
How do I fix CVE-2021-26194?
No fix has been published for CVE-2021-26194 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-2021-26194 being exploited?
There is no known exploitation of CVE-2021-26194 in the wild and no public exploit code.
Other vulnerabilities in Jerryscript Jerryscript
Sources
Also known as GHSA-h4xg-pg5p-4qf7, UBUNTU-CVE-2021-26194.