rails: A regular expression based DoS vulnerability in Action Dispatch <6.1.7.1 and <7.0.4.1 related to the If-None-Match he...
CVE-2023-22795 is fixed in rails on 1 platform, first by DEBIAN-CVE-2023-22795, released February 9, 2023. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| rails · Debian 12.15 (bookworm) | 2:6.1.7.3+dfsg-1 | DEBIAN-CVE-2023-22795 | Feb 9, 2023 |
| rails · Debian 13.5 (trixie) | 2:6.1.7.3+dfsg-1 | DEBIAN-CVE-2023-22795 | Feb 9, 2023 |
| rails · Debian 14 | 2:6.1.7.3+dfsg-1 | DEBIAN-CVE-2023-22795 | Feb 9, 2023 |
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