CVE-2015-3217 Denial of service in n/a
Remote attackers can cause a denial of service via stack-based buffer overflow in PCRE by submitting crafted regular expressions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-3217?
CVE-2015-3217 is a high-severity denial of service vulnerability in n/a, published on 13 Dec 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.
Weakness: CWE-119
Which versions are affected by CVE-2015-3217?
It affects 3 products.
Products include Ibm Powerkvm, Pcre Pcre, Pcre Pcre2.
How do I fix CVE-2015-3217?
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-2015-3217 being exploited?
There is no known exploitation of CVE-2015-3217 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2015-3217, GHSA-pv36-98fw-pc7h.