Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pomsky-Lang | Pomsky | < 0.4.3 |
Related Weaknesses (CWE)
References
- https://github.com/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a1136PatchThird Party Advisory
- https://github.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqpThird Party Advisory
- https://github.com/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a1136PatchThird Party Advisory
- https://github.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqpThird Party Advisory
FAQ
What is CVE-2022-31099?
CVE-2022-31099 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 expr...
How severe is CVE-2022-31099?
CVE-2022-31099 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-31099?
Check the references section above for vendor advisories and patch information. Affected products include: Pomsky-Lang Pomsky.