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Alpine Linux: CVE-2023-22795: Inefficient Regular Expression Complexity

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Alpine Linux: CVE-2023-22795: Inefficient Regular Expression Complexity

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/09/2023
Created
03/22/2024
Added
03/21/2024
Modified
03/22/2024

Description

A regular expression based DoS vulnerability in Action Dispatch <6.1.7.1 and <7.0.4.1 related to the If-None-Match header. A specially crafted HTTP If-None-Match header can cause the regular expression engine to enter a state of catastrophic backtracking, when on a version of Ruby below 3.2.0. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability All users running an affected release should either upgrade or use one of the workarounds immediately.

Solution(s)

  • alpine-linux-upgrade-ruby

References

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