CVE-2022-31129

high

Description

moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates. Affected versions of moment were found to use an inefficient parsing algorithm. Specifically using string-to-date parsing in moment (more specifically rfc2822 parsing, which is tried by default) has quadratic (N^2) complexity on specific inputs. Users may notice a noticeable slowdown is observed with inputs above 10k characters. Users who pass user-provided strings without sanity length checks to moment constructor are vulnerable to (Re)DoS attacks. The problem is patched in 2.29.4, the patch can be applied to all affected versions with minimal tweaking. Users are advised to upgrade. Users unable to upgrade should consider limiting date lengths accepted from user input.

References

https://github.com/moment/moment/commit/9a3b5894f3d5d602948ac8a02e4ee528a49ca3a3

https://github.com/moment/moment/pull/6015#issuecomment-1152961973

https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g

https://huntr.dev/bounties/f0952b67-f2ff-44a9-a9cd-99e0a87cb633/

https://lists.fedoraproject.org/archives/list/[email protected]/message/6QIO6YNLTK2T7SPKDS4JEL45FANLNC2Q/

https://lists.fedoraproject.org/archives/list/[email protected]/message/ORJX2LF6KMPIHP6B2P6KZIVKMLE3LVJ5/

https://lists.fedoraproject.org/archives/list/[email protected]/message/IWY24RJA3SBJGA5N4CU4VBPHJPPPJL5O/

https://lists.fedoraproject.org/archives/list/[email protected]/message/ZMX5YHELQVCGKKQVFXIYOTBMN23YYSRO/

Details

Source: MITRE

Published: 2022-07-06

Updated: 2022-09-12

Type: CWE-400

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH