CVE-2011-5320 Denial of service in n/a
Local attackers can cause a segmentation fault and denial of service in applications using glibc scanf functions by providing a large string of zeros.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-5320?
CVE-2011-5320 is a medium-severity denial of service vulnerability in Gnu Glibc, published on 18 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
scanf and related functions in glibc before 2.15 allow local users to cause a denial of service (segmentation fault) via a large string of 0s.
Weakness: CWE-119
Which versions are affected by CVE-2011-5320?
It affects 1 product.
Products include Gnu Glibc.
How do I fix CVE-2011-5320?
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-2011-5320 being exploited?
There is no known exploitation of CVE-2011-5320 in the wild and no public exploit code.
Other vulnerabilities in Gnu Glibc
Sources
Also known as DEBIAN-CVE-2011-5320, GHSA-m3xm-963r-gm9q.