CVE-2023-52892
phpseclib - security update
7.5
HIGH
CVSS 3.1
EPSS 0.38%
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.
How to fix CVE-2023-52892
To remediate CVE-2023-52892, upgrade the affected package to a fixed version below.
- —upgrade to 2.0.30-2+deb11u3 or later
- —upgrade to 3.0.19-1+deb12u4 or later
- —upgrade to 1.0.19-3+deb11u3 or later
Is CVE-2023-52892 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.0.30-2+deb11u3
- from 0, < 3.0.19-1+deb12u4
- from 0, < 1.0.19-3+deb11u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |