GHSA-2m96-52r3-2f3g

Source

https://github.com/advisories/GHSA-2m96-52r3-2f3g

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-2m96-52r3-2f3g/GHSA-2m96-52r3-2f3g.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-2m96-52r3-2f3g

Aliases

CVE-2024-43380

Related

Published

2024-08-19T17:29:36Z

Modified

2024-08-21T15:10:27.099533Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator

Summary

fugit parse and parse_nat stall on lengthy input

Details

Impact

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 plausability are impacted.

Patches

Problem was reported in #104 and the fix was released in fugit 1.11.1

Workarounds

By making sure that Fugit.parse(s), Fugit.do_parse(s), Fugit.parse_nat(s), Fugit.do_parse_nat(s), Fugit::Nat.parse(s), and Fugit::Nat.do_parse(s) are not fed strings too long. 1000 chars feels ok, while 10_000 chars makes it stall.

In fewer words, making sure those fugit methods are not fed unvetted input strings.

References

gh-104

Database specific

{
    "nvd_published_at": "2024-08-19T15:15:08Z",
    "cwe_ids": [
        "CWE-400"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2024-08-19T17:29:36Z"
}

References

Affected packages

RubyGems / fugit

Package

Name: fugit
Purl: pkg:gem/fugit

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.11.1

Affected versions

0.*

0.1.0

0.9.0

0.9.1

0.9.2

0.9.3

0.9.4

0.9.5

0.9.6

1.*

1.0.0

1.1.0

1.1.1

1.1.2

1.1.3

1.1.4

1.1.5

1.1.6

1.1.7

1.1.8

1.1.9

1.1.10

1.2.0

1.2.1

1.2.2

1.2.3

1.3.0

1.3.1

1.3.2

1.3.3

1.3.4

1.3.5

1.3.6

1.3.7

1.3.8

1.3.9

1.4.0

1.4.1

1.4.2

1.4.3

1.4.4

1.4.5

1.5.0

1.5.1

1.5.2

1.5.3

1.6.0

1.7.0

1.7.1

1.7.2

1.8.0

1.8.1

1.9.0

1.10.0

1.10.1

1.11.0