CVE-2014-8601 Denial of service in n/a
Remote attackers can cause denial of service in PowerDNS Recursor by triggering excessive delegation chaining via crafted referrals.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-8601?
CVE-2014-8601 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 10 Dec 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PowerDNS Recursor before 3.6.2 does not limit delegation chaining, which allows remote attackers to cause a denial of service ("performance degradations") via a large or infinite number of referrals, as demonstrated by resolving domains hosted by ezdns.it.
Weakness: CWE-399
Which versions are affected by CVE-2014-8601?
It affects 2 products.
Products include Debian Debian Linux, Powerdns Recursor.
How do I fix CVE-2014-8601?
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-2014-8601 being exploited?
There is no known exploitation of CVE-2014-8601 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2014-8601, DLA-104-1, DSA-3096-1, GHSA-cmfg-cqcc-qpqf, MGASA-2014-0522, UBUNTU-CVE-2014-8601.