CVE-2023-52892
Publication date 27 June 2024
Last updated 2 April 2025
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| php-phpseclib | 24.10 oracular |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Fixed 2.0.36-1ubuntu0.1~esm2
|
|
| 20.04 LTS focal |
Fixed 2.0.23-2ubuntu0.1~esm2
|
|
| 18.04 LTS bionic |
Fixed 2.0.9-1ubuntu0.1~esm2
|
|
| 16.04 LTS xenial |
Fixed 2.0.1-1ubuntu0.1~esm2
|
|
| php-phpseclib3 | 24.10 oracular |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Fixed 3.0.13-1ubuntu0.1~esm1
|
|
| 20.04 LTS focal | Not in release | |
| phpseclib | 24.10 oracular |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Fixed 1.0.20-1ubuntu0.1~esm1
|
|
| 20.04 LTS focal |
Fixed 1.0.18-2ubuntu0.1~esm1
|
|
| 18.04 LTS bionic |
Fixed 1.0.9-1ubuntu0.1~esm1
|
|
| 16.04 LTS xenial |
Fixed 1.0.1-3ubuntu0.1+esm1
|
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Related Ubuntu Security Notices (USN)
- USN-7404-1
- phpseclib vulnerabilities
- 2 April 2025
Other references
- https://www.cve.org/CVERecord?id=CVE-2023-52892
- https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627 (1.0.22, 2.0.46, 3.0.33)
- https://github.com/phpseclib/phpseclib/issues/1943
- https://github.com/phpseclib/phpseclib/releases/tag/3.0.33
- https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627
- https://github.com/x509-name-testing/name_testing_artifacts