CVE-2016-5417 Denial of service in n/a
Remote attackers can cause denial of service via memory consumption in the glibc resolver due to improper initialization of internal data structures.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-5417?
CVE-2016-5417 is a high-severity denial of service vulnerability in Gnu Glibc, published on 16 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Memory leak in the __res_vinit function in the IPv6 name server management code in libresolv in GNU C Library (aka glibc or libc6) before 2.24 allows remote attackers to cause a denial of service (memory consumption) by leveraging partial initialization of internal resolver data structures.
Weakness: CWE-399
Which versions are affected by CVE-2016-5417?
It affects 1 product.
Products include Gnu Glibc.
How do I fix CVE-2016-5417?
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-2016-5417 being exploited?
There is no known exploitation of CVE-2016-5417 in the wild and no public exploit code.
Other vulnerabilities in Gnu Glibc
Sources
Also known as DEBIAN-CVE-2016-5417, GHSA-qqpx-rhfx-8mgf, UBUNTU-CVE-2016-5417.