CVE-2017-7186 Denial of service in n/a
Remote attackers can crash applications using PCRE or PCRE2 by triggering invalid Unicode property lookups, causing a segmentation violation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-7186?
CVE-2017-7186 is a high-severity denial of service vulnerability in n/a, published on 20 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.
Weakness: CWE-119
Which versions are affected by CVE-2017-7186?
It affects 2 products.
Products include Pcre Pcre, Pcre Pcre2.
How do I fix CVE-2017-7186?
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-2017-7186 being exploited?
There is no known exploitation of CVE-2017-7186 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as ALPINE-CVE-2017-7186, DEBIAN-CVE-2017-7186, GHSA-vrw4-ffp3-c5mv, UBUNTU-CVE-2017-7186.