CVE-2024-47187 Suricata datasets: missing hashtable random seed leads to potential DoS
Attackers can cause excessive resource consumption in Suricata by loading datasets with predictable hash table behavior, leading to 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-2024-47187?
CVE-2024-47187 is a high-severity denial of service vulnerability in Oisf Suricata, published on 16 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, missing initialization of the random seed for "thash" leads to datasets having predictable hash table behavior. This can lead to dataset file loading to use excessive time to load, as well as runtime performance issues during traffic handling. This issue has been addressed in 7.0.7. As a workaround, avoid loading datasets from untrusted sources. Avoid dataset rules that track traffic in rules.
Which versions are affected by CVE-2024-47187?
It affects 1 product.
Products include Oisf Suricata.
How do I fix CVE-2024-47187?
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-2024-47187 being exploited?
There is no known exploitation of CVE-2024-47187 in the wild and no public exploit code.
Other vulnerabilities in Oisf Suricata
Sources
Also known as DEBIAN-CVE-2024-47187, GHSA-64ww-4f6x-863p, UBUNTU-CVE-2024-47187.