CVE-2017-6004 Denial of service in n/a
Remote attackers can cause a denial of service via a crafted regular expression in the PCRE library, affecting applications using vulnerable versions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-6004?
CVE-2017-6004 is a high-severity denial of service vulnerability in n/a, published on 16 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression.
Weakness: CWE-125
Which versions are affected by CVE-2017-6004?
It affects 1 product.
Products include Pcre Pcre.
How do I fix CVE-2017-6004?
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-2017-6004 being exploited?
There is no known exploitation of CVE-2017-6004 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2017-6004, GHSA-59rh-53qm-wcv4, UBUNTU-CVE-2017-6004.