CVE-2016-4491 Denial of service in n/a
Remote attackers can cause a denial of service via crafted binaries triggering infinite recursion and buffer overflow in the libiberty demangler.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2016-4491?
CVE-2016-4491 is a medium-severity denial of service vulnerability in n/a, published on 24 Feb 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The d_print_comp function in cp-demangle.c in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, which triggers infinite recursion and a buffer overflow, related to a node having "itself as ancestor more than once."
Weakness: CWE-119
Which versions are affected by CVE-2016-4491?
It affects 1 product.
Products include Gnu Libiberty.
How do I fix CVE-2016-4491?
Apply the vendor's patch.
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-2016-4491 being exploited?
There is no known exploitation of CVE-2016-4491 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2016-4491, GHSA-7r8p-jc9c-3r5f, UBUNTU-CVE-2016-4491.