CVE-2023-52892 Affecting php-phpseclib package, versions <2.0.36-1ubuntu0.1~esm2
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-UBUNTU2204-PHPPHPSECLIB-7414032
- published28 Mar 2025
- disclosed27 Jun 2024
Introduced: 27 Jun 2024
CVE-2023-52892 (opens in a new tab)How to fix?
Upgrade Ubuntu:22.04 php-phpseclib to version 2.0.36-1ubuntu0.1~esm2 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 Ubuntu.
See How to fix? for Ubuntu:22.04 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
- http://people.ubuntu.com/~ubuntu-security/cve/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