CVE-2024-32663 Suricata 's http2 parser contains an improper compressed header handling can lead to resource starvation
Attackers can cause resource starvation and denial of service in Suricata by sending small amounts of HTTP/2 traffic due to improper compressed header handling.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-32663?
CVE-2024-32663 is a high-severity denial of service vulnerability in Oisf Suricata, published on 7 May 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 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).
Which versions are affected by CVE-2024-32663?
It affects 1 product.
Products include Oisf Suricata.
How do I fix CVE-2024-32663?
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-2024-32663 being exploited?
There is no known exploitation of CVE-2024-32663 in the wild and no public exploit code.
Other vulnerabilities in Oisf Suricata
Sources
Also known as DEBIAN-CVE-2024-32663, GHSA-9jxm-qw9v-266r, UBUNTU-CVE-2024-32663.