schokokeksorg/freewvs · Security
freewvs's nested directory structure can interrupt scan
- GHSA ID
- GHSA-7pmh-vrww-25xx
- CVE ID
- CVE-2020-15101
- Severity
- low
- Published
- Updated
- CVSS
- 2.8 · CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
- CVSS v3
- 2.8 · CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
- CVSS v4
- 2.4 · CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Description
Impact
A directory structure of more than 1000 nested directories can interrupt a freewvs scan due to Python's recursion limit and os.walk(). This can be problematic in a case where an administrator scans the dirs of potentially untrusted users.
Patches
This has been fixed in this commit by limiting the recursion to 500 directories: https://github.com/schokokeksorg/freewvs/commit/83a6b55c0435c69f447488b791555e6078803143
This issue was discovered by Hanno Böck.
CWEs
- CWE-674 · Uncontrolled Recursion
References
- https://github.com/schokokeksorg/freewvs/security/advisories/GHSA-7pmh-vrww-25xx ↗
- https://nvd.nist.gov/vuln/detail/CVE-2020-15101 ↗
- https://github.com/schokokeksorg/freewvs/commit/83a6b55c0435c69f447488b791555e6078803143 ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/freewvs/PYSEC-2020-233.yaml ↗
- https://github.com/advisories/GHSA-7pmh-vrww-25xx ↗