CVE-2023-22792
ReDoS based DoS vulnerability in Action Dispatch
7.5
HIGH
CVSS 3.1
EPSS 2.3%
Description
A regular expression based DoS vulnerability in Action Dispatch <6.0.6.1,< 6.1.7.1, and <7.0.4.1. Specially crafted cookies, in combination with a specially crafted X_FORWARDED_HOST header 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 All users running an affected release should either upgrade or use one of the workarounds immediately.
How to fix CVE-2023-22792
To remediate CVE-2023-22792, upgrade the affected package to a fixed version below.
- —upgrade to 2:6.0.3.7+dfsg-2+deb11u1 or later
- —upgrade to 5.2.8.15 or later
Is CVE-2023-22792 being exploited?
Low — EPSS is 2.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2:6.0.3.7+dfsg-2+deb11u1
- >= 3.0.0, < 5.2.8.15
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |