CVE-2023-52892 Affecting php-phpseclib package, versions <2.0.46-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-PHPPHPSECLIB-11764406
- published10 Aug 2025
- disclosed27 Jun 2024
Introduced: 27 Jun 2024
CVE-2023-52892 (opens in a new tab)How to fix?
Upgrade Debian:14 php-phpseclib to version 2.0.46-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php-phpseclib package and not the php-phpseclib package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2023-52892
- https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627
- https://github.com/phpseclib/phpseclib/issues/1943
- https://github.com/phpseclib/phpseclib/releases/tag/3.0.33
- https://github.com/x509-name-testing/name_testing_artifacts