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.
EPSS: 0.009 (56.0th percentile) — read the EPSS interpretation.
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.
Affected products
- Pomsky-lang Pomsky
- Rulex-rs Rulex — versions < 0.4.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
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.