CVE-2024-1737 BIND's database will be slow if a very large number of RRs exist at the same name
Attackers can degrade BIND performance by creating many resource records for a single name, causing slow query handling and database updates.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-1737?
CVE-2024-1737 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
Resolver caches and authoritative zone databases that hold significant numbers of RRs for the same hostname (of any RTYPE) can suffer from degraded performance as content is being added or updated, and also when handling client queries for this name. This issue affects BIND 9 versions 9.11.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.11.4-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.27-S1.
Weakness: CWE-770
Which versions are affected by CVE-2024-1737?
How do I fix CVE-2024-1737?
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-2024-1737 being exploited?
There is no known exploitation of CVE-2024-1737 in the wild and no public exploit code.
Sources
Also known as ALPINE-CVE-2024-1737, AZL-46981, AZL-46988, AZL-47030, BELL-CVE-2024-1737, CLSA-2024-1724434812 and 6 more.