CVE-2024-38535 Suricata http2: oom from duplicate headers
Attackers can cause Suricata to run out of memory by sending crafted HTTP/2 traffic, 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-2024-38535?
CVE-2024-38535 is a high-severity denial of service vulnerability in Oisf Suricata, published on 11 Jul 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. Suricata can run out of memory when parsing crafted HTTP/2 traffic. Upgrade to 6.0.20 or 7.0.6.
Weakness: CWE-770
Which versions are affected by CVE-2024-38535?
It affects 1 product.
Products include Oisf Suricata.
How do I fix CVE-2024-38535?
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-2024-38535 being exploited?
There is no known exploitation of CVE-2024-38535 in the wild and no public exploit code.
Other vulnerabilities in Oisf Suricata
Sources
Also known as DEBIAN-CVE-2024-38535, GHSA-cg8j-7mwm-v563, UBUNTU-CVE-2024-38535.