CVE-2023-52892

Publication date 27 June 2024

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was needs-triage
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 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was needs-triage
22.04 LTS jammy
Fixed 3.0.13-1ubuntu0.1~esm1
20.04 LTS focal Not in release
phpseclib 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was needs-triage
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

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N