CVE-2022-24809 net-snmp: A malformed OID in a SET request to NET-SNMP-AGENT-MIB::nsLogTable can cause a NULL pointer dereference
A remote attacker with read-only credentials can cause a denial of service in net-snmp by sending a malformed OID in a GET-NEXT request.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-24809?
CVE-2022-24809 is a medium-severity vulnerability in Debian Debian Linux, published on 16 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
net-snmp provides various tools relating to the Simple Network Management Protocol. Prior to version 5.9.2, a user with read-only credentials can use a malformed OID in a `GET-NEXT` to the `nsVacmAccessTable` to cause a NULL pointer dereference. Version 5.9.2 contains a patch. Users should use strong SNMPv3 credentials and avoid sharing the credentials. Those who must use SNMPv1 or SNMPv2c should use a complex community string and enhance the protection by restricting access to a given IP address range.
Weakness: CWE-476
Which versions are affected by CVE-2022-24809?
It affects 15 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Net-Snmp Net-Snmp, Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux for Arm 64 and 9 more.
How do I fix CVE-2022-24809?
Upgrade to a fixed version.
Is CVE-2022-24809 being exploited?
There is no known exploitation of CVE-2022-24809 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2022-24809, DEBIAN-CVE-2022-24809, UBUNTU-CVE-2022-24809.