rulex is a new, portable, regular expression language. When parsing untrusted rulex expressions, rulex may crash, possibly enabling a Denial of Service attack. This happens when the expression contains a multi-byte UTF-8 code point in a string literal or after a backslash, because rulex tries to slice into the code point and panics as a result. This is a security concern for you, if your service parses untrusted rulex expressions (expressions provided by an untrusted user), and your service becomes unavailable when the thread running rulex panics. The crashes are fixed in version **0.4.3**. Affected users are advised to update to this version. The only known workaround for this issue is to assume that regular expression parsing will panic and to add logic to catch panics.
                
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References
        History
                    Wed, 23 Apr 2025 19:15:00 +0000
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 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: GitHub_M
Published: 2022-06-27T22:10:11.000Z
Updated: 2025-04-23T18:06:26.973Z
Reserved: 2022-05-18T00:00:00.000Z
Link: CVE-2022-31100
 Vulnrichment
                        Vulnrichment
                    Updated: 2024-08-03T07:11:39.574Z
 NVD
                        NVD
                    Status : Modified
Published: 2022-06-27T22:15:09.240
Modified: 2024-11-21T07:03:53.663
Link: CVE-2022-31100
 Redhat
                        Redhat
                    No data.