CVE-2024-28870 Suricata uses excessive resource use in malformed ssh traffic parsing
Attackers can cause excessive CPU usage and logging in Suricata by sending malformed SSH traffic, leading to service degradation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-28870?
CVE-2024-28870 is a high-severity denial of service vulnerability in Oisf Suricata, published on 3 Apr 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 developed by the OISF and the Suricata community. When parsing an overly long SSH banner, Suricata can use excessive CPU resources, as well as cause excessive logging volume in alert records. This issue has been patched in versions 6.0.17 and 7.0.4.
Weakness: CWE-770
Which versions are affected by CVE-2024-28870?
It affects 1 product.
Products include Oisf Suricata.
How do I fix CVE-2024-28870?
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-2024-28870 being exploited?
There is no known exploitation of CVE-2024-28870 in the wild and no public exploit code.
Other vulnerabilities in Oisf Suricata
Sources
Also known as DEBIAN-CVE-2024-28870, GHSA-mhhx-xw7r-r5c8, UBUNTU-CVE-2024-28870.