CVE-2019-12207 Memory corruption in n/a

Critical 9.8 Published 20 May 2019 Updated 4 Aug 2024

A heap-based buffer over-read in the njs module allows attackers to cause denial of service or disclose sensitive memory information.

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-2019-12207?

CVE-2019-12207 is a critical memory corruption vulnerability in n/a, published on 20 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

njs through 0.3.1, used in NGINX, has a heap-based buffer over-read in nxt_utf8_decode in nxt/nxt_utf8.c.

Weakness: CWE-125

Which versions are affected by CVE-2019-12207?

It affects 1 product.

Products include F5 Njs.

How do I fix CVE-2019-12207?

No fix has been published for CVE-2019-12207 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-2019-12207 being exploited?

There is no known exploitation of CVE-2019-12207 in the wild and no public exploit code.

Sources

Also known as GHSA-jqp9-4g4m-74gq.