CVE-2024-43380 fugit parse and parse_nat stall on lengthy input
Attackers can cause denial of service by providing lengthy input to the fugit parser, which stalls the thread indefinitely.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-43380?
CVE-2024-43380 is a medium-severity denial of service vulnerability in floraison fugit, published on 19 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
fugit contains time tools for flor and the floraison group. The fugit "natural" parser, that turns "every wednesday at 5pm" into "0 17 * * 3", accepted any length of input and went on attempting to parse it, not returning promptly, as expected. The parse call could hold the thread with no end in sight. Fugit dependents that do not check (user) input length for plausibility are impacted. A fix was released in fugit 1.11.1.
Weakness: CWE-400
Which versions are affected by CVE-2024-43380?
2 open source packages ship an affected version, including fugit. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
fugit RubyGems | All versions | 1.11.1 |
fugit RubyGems | All versions | 1.11.1 |
Products include Floraison Fugit.
How do I fix CVE-2024-43380?
Upgrade fugit to 1.11.1 or later.
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-2024-43380 being exploited?
There is no known exploitation of CVE-2024-43380 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2024-43380, GHSA-2m96-52r3-2f3g, UBUNTU-CVE-2024-43380.