CVE-2017-11164 Denial of service in n/a

High 7.5 Published Updated

A crafted regular expression can cause stack exhaustion in the PCRE library, leading to a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-11164?

CVE-2017-11164 is a high-severity denial of service vulnerability in n/a, published on 11 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In PCRE 8.41, the OP_KETRMAX feature in the match function in pcre_exec.c allows stack exhaustion (uncontrolled recursion) when processing a crafted regular expression.

Weakness: CWE-674

Which versions are affected by CVE-2017-11164?

It affects 1 product.

Products include Pcre Pcre.

How do I fix CVE-2017-11164?

Upgrade to a fixed version.

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-2017-11164 being exploited?

There is no known exploitation of CVE-2017-11164 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2017-11164, DEBIAN-CVE-2017-11164, GHSA-5457-7wx3-gf7j, UBUNTU-CVE-2017-11164.

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