CVE-2021-46548 Null dereference in n/a
A null pointer dereference in the MJS JavaScript engine allows attackers to cause a denial of service via crafted input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-46548?
CVE-2021-46548 is a medium-severity vulnerability in Cesanta Mjs, published on 27 Jan 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via add_lineno_map_item at src/mjs_bcode.c. This vulnerability can lead to a Denial of Service (DoS).
Which versions are affected by CVE-2021-46548?
It affects 1 product.
Products include Cesanta Mjs.
How do I fix CVE-2021-46548?
No fix has been published for CVE-2021-46548 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-46548 being exploited?
There is no known exploitation of CVE-2021-46548 in the wild and no public exploit code.
Other vulnerabilities in Cesanta Mjs
Sources
Also known as GHSA-4j35-95ch-4cqq.