CVE-2021-43453 Memory corruption in n/a
Heap-based buffer overflow in JerryScript allows attackers to cause denial of service or potentially execute arbitrary code via crafted JavaScript.
- 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-2021-43453?
CVE-2021-43453 is a critical memory corruption vulnerability in Jerryscript Jerryscript, published on 7 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A Heap-based Buffer Overflow vulnerability exists in JerryScript 2.4.0 and prior versions via an out-of-bounds read in parser_parse_for_statement_start in the js-parser-statm.c file. This issue is similar to CVE-2020-29657.
Weakness: CWE-125
Which versions are affected by CVE-2021-43453?
It affects 1 product.
Products include Jerryscript Jerryscript.
How do I fix CVE-2021-43453?
No fix has been published for CVE-2021-43453 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-2021-43453 being exploited?
There is no known exploitation of CVE-2021-43453 in the wild and no public exploit code.
Other vulnerabilities in Jerryscript Jerryscript
Sources
Also known as GHSA-prc8-jxj9-2w9m, UBUNTU-CVE-2021-43453.