phpseclib/phpseclib · Security
Name confusion in x509 Subject Alternative Name fields
- GHSA ID
- GHSA-ff7q-6vwh-v9m4
- CVE ID
- CVE-2023-52892
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS v4
- 8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Description
In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
CWEs
- CWE-436 · Interpretation Conflict
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-52892 ↗
- https://github.com/phpseclib/phpseclib/issues/1943 ↗
- https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627 ↗
- https://github.com/phpseclib/phpseclib/releases/tag/3.0.33 ↗
- https://github.com/x509-name-testing/name_testing_artifacts ↗
- https://github.com/advisories/GHSA-ff7q-6vwh-v9m4 ↗