Vulnerability Details CVE-2022-31099
rulex is a new, portable, regular expression language. When parsing untrusted rulex expressions, the stack may overflow, possibly enabling a Denial of Service attack. This happens when parsing an expression with several hundred levels of nesting, causing the process to abort immediately. 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 process running rulex aborts due to a stack overflow. The crash is fixed in version **0.4.3**. Affected users are advised to update to this version. There are no known workarounds for this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 64.7%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.0
References
- https://github.com/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a11363
- https://github.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqp
- https://github.com/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a11363
- https://github.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqp
Products affected by CVE-2022-31099
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cpe:2.3:a:pomsky-lang:pomsky:*