Vulnerability · Published Aug 19, 2024 · Assigned by GitHub_M

CVE-2024-43380fugit parse and parse_nat stall on lengthy input

Medium 5.3

In plain English

A medium-severity uncontrolled resource consumption in fugit from floraison. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.8%top 43.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	ruby-fugit	no fix listed	DEBIAN-CVE-2024-43380
RubyGems	fugit	1.11.1	GHSA-2m96-52r3-2f3g
Ubuntu:22.04:LTS	ruby-fugit	no fix listed	UBUNTU-CVE-2024-43380
Ubuntu:24.04:LTS	ruby-fugit	no fix listed	UBUNTU-CVE-2024-43380

Affected products (as reported)

Vendor	Product	Versions
floraison	fugit	< 1.11.1

Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

https://github.com/floraison/fugit/security/advisories/GHSA-2m96-52r3-2f3g x_refsource_CONFIRM
https://github.com/floraison/fugit/issues/104 x_refsource_MISC
https://github.com/floraison/fugit/commit/ad2c1c9c737213d585fff0b51c927d178b2c05a5 x_refsource_MISC