CVE-2024-0760 A flood of DNS messages over TCP may make the server unstable
A malicious client can cause instability in the BIND DNS server by flooding it with TCP DNS messages, leading to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-0760?
CVE-2024-0760 is a high-severity denial of service vulnerability in ISC BIND 9, published on 23 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A malicious client can send many DNS messages over TCP, potentially causing the server to become unstable while the attack is in progress. The server may recover after the attack ceases. Use of ACLs will not mitigate the attack. This issue affects BIND 9 versions 9.18.1 through 9.18.27, 9.19.0 through 9.19.24, and 9.18.11-S1 through 9.18.27-S1.
Weakness: CWE-770
Which versions are affected by CVE-2024-0760?
How do I fix CVE-2024-0760?
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-2024-0760 being exploited?
There is no known exploitation of CVE-2024-0760 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as ALPINE-CVE-2024-0760, AZL-46972, BELL-CVE-2024-0760, DEBIAN-CVE-2024-0760, GHSA-v3r3-642v-rqj8, OESA-2024-2016 and 2 more.