CVE-2023-22796 — Uncontrolled Resource Consumption in Project Activesupport

CWE-400 — Uncontrolled Resource ConsumptionCWE-1333 — Regex Denial of Service8 documents7 sources
Severity
7.5HIGHNVD
EPSS
1.7%
top 17.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Rubyonrails RailsActivesupport Project ActivesupportHttps Github.com Rails Rails
Timeline
PublishedFeb 9
Latest updateJul 27

Description

A regular expression based DoS vulnerability in Active Support <6.1.7.1 and <7.0.4.1. A specially crafted string passed to the underscore method can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDactivesupport_project/activesupport7.0.0 — 7.0.4.1+1
▶Debianrubyonrails/rails< 2:6.0.3.7+dfsg-2+deb11u1+3
▶CVEListV5https/github.com_rails_rails6.1.7.1, 7.0.4.1

Patches

Patch: discuss.rubyonrails.org ↗Patch: discuss.rubyonrails.org ↗

🔴Vulnerability Details

4
CVEList
CVE-2023-22796: A regular expression based DoS vulnerability in Active Support <6↗2023-02-09
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OSV
CVE-2023-22796: A regular expression based DoS vulnerability in Active Support <6↗2023-02-09
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OSV
ReDoS based DoS vulnerability in Active Support's underscore↗2023-01-18
▶
GHSA
ReDoS based DoS vulnerability in Active Support's underscore↗2023-01-18
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📋Vendor Advisories

2
Red Hat
rubygem-activesupport: Regular Expression Denial of Service↗2023-01-20
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Debian
CVE-2023-22796: rails - A regular expression based DoS vulnerability in Active Support <6.1.7.1 and <7.0...↗2023
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💬Community

1
HackerOne
[CVE-2023-22796] Possible ReDoS based DoS vulnerability in Active Support’s underscore↗2023-07-27
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CVE-2023-22796 — Uncontrolled Resource Consumption | cvebase