Vulnerability in Pomsky-Lang Pomsky
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
- Pomsky-Lang Pomsky
- Rulex-Rs Rulex — versions < 0.4.3
Weakness classification (CWE)
References
- github.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqp (Third Party Advisory)
- github.com/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a11363 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31099?
- CVE-2022-31099 is a medium-severity vulnerability in Pomsky-Lang Pomsky, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2022-06-27.
- How severe is CVE-2022-31099?
- Medium severity. CVSS v3 base score is 6.5 out of 10.