CVE-2023-52892 — Interpretation Conflict in Phpseclib

CWE-436 — Interpretation Conflict7 documents5 sources
Severity
7.5HIGHNVD
EPSS
0.2%
top 60.00%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
PhpseclibDebian Php-phpseclibDebian Php-phpseclib3+1 more
Timeline
PublishedJun 27
Latest updateApr 2

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages7 packages

▶debiandebian/phpseclib< php-phpseclib 2.0.42-1+deb12u3 (bookworm)
▶NVDphpseclib/phpseclib1.0.0 — 1.0.22+2
▶Packagistphpseclib/phpseclib2.0.0 — 2.0.46+2
▶debiandebian/php-phpseclib< php-phpseclib 2.0.42-1+deb12u3 (bookworm)
▶debiandebian/php-phpseclib3< php-phpseclib 2.0.42-1+deb12u3 (bookworm)

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
OSV
phpseclib vulnerabilities↗2025-04-02
▶
GHSA
Name confusion in x509 Subject Alternative Name fields↗2024-06-28
▶
OSV
Name confusion in x509 Subject Alternative Name fields↗2024-06-28
▶
OSV
CVE-2023-52892: In phpseclib before 1↗2024-06-27
▶

📋Vendor Advisories

2
Ubuntu
phpseclib vulnerabilities↗2025-04-02
▶
Debian
CVE-2023-52892: php-phpseclib - In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some chara...↗2023
▶