PT-2023-8904 · Ruby+10 · Ruby+10
Tenderlove
·
Published
2023-03-15
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Updated
2026-03-13
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CVE-2023-27539
CVSS v3.1
5.3
Medium
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
Name of the Vulnerable Software and Affected Versions
Rack versions 2.0.0 through 2.2.6.3
Rack versions 3.0.0 through 3.0.6.0
Description
The issue is related to the header parsing component of Rack, which can be exploited to cause a denial of service. This can happen when carefully crafted input causes the header parsing to take an unexpected amount of time. The vulnerability can be exploited remotely, potentially allowing an attacker to cause a denial of service.
Recommendations
For Rack versions 2.0.0 through 2.2.6.3, update to version 2.2.6.4 or later.
For Rack versions 3.0.0 through 3.0.6.0, update to version 3.0.6.1 or later.
As a temporary workaround, consider setting Regexp.timeout in Ruby 3.2 to mitigate the risk of exploitation.
Exploit
Fix
DoS
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linuxmint
Rack
Red Hat
Red Os
Rocky Linux
Ruby
Suse
Ubuntu