CVE-2023-27539 — Regex Denial of Service in Rails Rack

CWE-1333 — Regex Denial of Service12 documents6 sources
Severity
5.3MEDIUMNVD
OSV7.5
EPSS
0.3%
top 43.62%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Rails RackRackDebian Ruby-rack+1 more
Timeline
PublishedJan 9

Description

There is a denial of service vulnerability in the header parsing component of Rack.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitability: 3.9 | Impact: 1.4

Affected Packages4 packages

▶NVDrack/rack2.0.0 — 2.2.6.4+1
▶RubyGemsrack/rack2.0.0 — 2.2.6.4+1
▶CVEListV5rails/rack2.2.6.4 — 2.2.6.4+1
▶debiandebian/ruby-rack< ruby-rack 2.2.6.4-1 (bookworm)

Also affects: Debian Linux 10.0, 11.0

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

6
OSV
CVE-2023-27539: There is a denial of service vulnerability in the header parsing component of Rack↗2025-01-09
▶
OSV
ruby-rack vulnerabilities↗2024-09-26
▶
OSV
ruby-rack vulnerabilities↗2024-07-23
▶
OSV
ruby-rack vulnerabilities↗2024-03-12
▶
OSV
Possible Denial of Service Vulnerability in Rack's header parsing↗2023-03-15
▶

📋Vendor Advisories

5
Ubuntu
Rack vulnerabilities↗2024-09-26
▶
Ubuntu
Rack vulnerabilities↗2024-07-23
▶
Ubuntu
Rack vulnerabilities↗2024-03-12
▶
Red Hat
rubygem-rack: denial of service in header parsing↗2023-03-15
▶
Debian
CVE-2023-27539: ruby-rack - There is a denial of service vulnerability in the header parsing component of Ra...↗2023
▶