CVE-2016-2090 Memory corruption in n/a
An off-by-one error in libbsd's fgetwln function causes a heap-based buffer overflow, potentially allowing attackers to execute arbitrary code or crash the application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-2090?
CVE-2016-2090 is a critical memory corruption vulnerability in Canonical Ubuntu Linux, published on 13 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Off-by-one vulnerability in the fgetwln function in libbsd before 0.8.2 allows attackers to have unspecified impact via unknown vectors, which trigger a heap-based buffer overflow.
Weakness: CWE-119
Which versions are affected by CVE-2016-2090?
It affects 4 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Freedesktop Libbsd.
How do I fix CVE-2016-2090?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-2090 being exploited?
There is no known exploitation of CVE-2016-2090 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2016-2090, DEBIAN-CVE-2016-2090, DLA-2052-1, GHSA-q44v-89pv-h73p, UBUNTU-CVE-2016-2090.