CVE-2024-34487 Ryu Infinite Loop vulnerability
Attackers can cause a denial of service via an infinite loop in the Faucet SDN Ryu controller by sending a specific flow stats message.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-34487?
CVE-2024-34487 is a high-severity denial of service vulnerability in n/a, published on 5 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OFPFlowStats in parser.py in Faucet SDN Ryu 4.34 allows attackers to cause a denial of service (infinite loop) via inst.length=0.
Weakness: CWE-835
Which versions are affected by CVE-2024-34487?
3 open source packages ship an affected version, including ryu. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
ryu PyPI | All versions to 4.34 | None |
ryu PyPI | All versions to 4.34 | None |
ryu PyPI | All versions to 4.34 | None |
Products include Facuet Ryu.
How do I fix CVE-2024-34487?
No fix has been published for CVE-2024-34487 yet. Limit exposure of the affected software until one is available.
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-2024-34487 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-34487 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-m9vm-8mv9-v5v3, PYSEC-2026-1883.