CVE-2020-23319 Denial of service in n/a
A crafted JavaScript input triggers an assertion failure in the JerryScript engine, causing a 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-2020-23319?
CVE-2020-23319 is a high-severity denial of service vulnerability in Jerryscript Jerryscript, published on 10 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
There is an Assertion in '(flags >> CBC_STACK_ADJUST_SHIFT) >= CBC_STACK_ADJUST_BASE || (CBC_STACK_ADJUST_BASE - (flags >> CBC_STACK_ADJUST_SHIFT)) <= context_p->stack_depth' in parser_emit_cbc_backward_branch in JerryScript 2.2.0.
Weakness: CWE-617
Which versions are affected by CVE-2020-23319?
It affects 1 product.
Products include Jerryscript Jerryscript.
How do I fix CVE-2020-23319?
No fix has been published for CVE-2020-23319 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-23319 being exploited?
There is no known exploitation of CVE-2020-23319 in the wild and no public exploit code.
Other vulnerabilities in Jerryscript Jerryscript
Sources
Also known as GHSA-vvx6-gxw4-9j4r, UBUNTU-CVE-2020-23319.