7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.003 Low
EPSS
Percentile
68.9%
Luxon’s `DateTime.fromRFC2822() has quadratic (N^2) complexity on some specific inputs. This causes a noticeable slowdown for inputs with lengths above 10k characters. Users providing untrusted data to this method are therefore vulnerable to (Re)DoS attacks.
This is the same bug as Moment’s https://github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g
Limit the length of the input.
There is an excellent writeup of the same issue in Moment: https://github.com/moment/moment/pull/6015#issuecomment-1152961973
DateTime.fromRFC2822("(".repeat(500000))
takes a couple minutes to complete.
github.com/moment/luxon
github.com/moment/luxon/commit/5ab3bf64a10da929a437629cdb2f059bb83212bf
github.com/moment/luxon/security/advisories/GHSA-3xq5-wjfh-ppjc
github.com/moment/moment/pull/6015#issuecomment-1152961973
github.com/moment/moment/security/advisories/GHSA-wc69-rhjr-hc9g
lists.fedoraproject.org/archives/list/[email protected]/message/44I3WAJKYXDLOVYRGMHAUXMIV4SPFXDZ
lists.fedoraproject.org/archives/list/[email protected]/message/4LIVOASKBQH7FEUI5RWM3SOHR6VK7ZZR
nvd.nist.gov/vuln/detail/CVE-2023-22467
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.003 Low
EPSS
Percentile
68.9%