CVE-2022-32166 ovs - buffer over-read
A heap buffer over-read in Open vSwitch allows attackers to crash the software or potentially execute remote code via unsafe memory access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-32166?
CVE-2022-32166 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 28 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c. An unsafe comparison of “minimasks” function could lead access to an unmapped region of memory. This vulnerability is capable of crashing the software, memory modification, and possible remote execution.
Weakness: CWE-125
Which versions are affected by CVE-2022-32166?
It affects 2 products.
Linux distribution packages (2)
openvswitch SUSE:Linux Enterprise Server 12 SP5 | All versions | 2.11.5-3.12.1 |
openvswitch SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 2.11.5-3.12.1 |
Products include Cloudbase Open Vswitch, Debian Debian Linux.
How do I fix CVE-2022-32166?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-32166 being exploited?
There is no known exploitation of CVE-2022-32166 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2022-32166, DLA-3168-1, GHSA-3q99-mmr6-6chg, SUSE-SU-2022:4050-1, UBUNTU-CVE-2022-32166, USN-5698-1 and 1 more.