CVE-2012-2669 Missing authorization in n/a
Local attackers can spoof Netlink communications in the Hyper-V KVP daemon due to missing origin validation, bypassing security controls.
- 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-2012-2669?
CVE-2012-2669 is a low-severity missing authorization vulnerability in Linux kernel, published on 27 Dec 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The main function in tools/hv/hv_kvp_daemon.c in hypervkvpd, as distributed in the Linux kernel before 3.4.5, does not validate the origin of Netlink messages, which allows local users to spoof Netlink communication via a crafted connector message.
Weakness: CWE-20
Which versions are affected by CVE-2012-2669?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2012-2669?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2012-2669 being exploited?
There is no known exploitation of CVE-2012-2669 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2012-2669, GHSA-8495-rmr5-jc76.