CVE-2019-11837 Integer overflow in n/a

High 7.5 Published Updated

An attacker can cause a segmentation fault and denial of service in the njs library via negative arguments to String.prototype.toBytes.

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-2019-11837?

CVE-2019-11837 is a high-severity vulnerability in n/a, published on 9 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 segmentation fault in String.prototype.toBytes for negative arguments, related to nxt_utf8_next in nxt/nxt_utf8.h and njs_string_offset in njs/njs_string.c.

Weakness: CWE-189

Which versions are affected by CVE-2019-11837?

It affects 1 product.

Products include F5 Njs.

How do I fix CVE-2019-11837?

No fix has been published for CVE-2019-11837 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-11837 being exploited?

There is no known exploitation of CVE-2019-11837 in the wild and no public exploit code.

Sources

Also known as GHSA-rj39-h9jv-68r2.

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