CVE-2023-52892
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
02 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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.37% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 31.2% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-06-27 00:00Z2 YR AGO
- Last updated
- 2024-08-21 20:02Z2 YR AGO
- Reserved
- 2024-06-27
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-436Interpretation ConflictClass
- Data version
- 5.1
- Document digest
- 1f4e706f97545b0faeb2810577c3783dd0dcb89c0934e2b2ff296a3d1b3e371c
05 Affected products
06 References
07 Fixed in
Debian 12
- php-phpseclib Fixed in 2.0.42-1+deb12u3
- php-phpseclib3 Fixed in 3.0.19-1+deb12u4
- phpseclib Fixed in 1.0.20-1+deb12u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- php-phpseclib Fixed in 2.0.46-1
- php-phpseclib3 Fixed in 3.0.33-1
- phpseclib Fixed in 1.0.22-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- php-phpseclib Fixed in 2.0.46-1
- php-phpseclib3 Fixed in 3.0.33-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- phpseclib Fixed in 1.0.20-1+deb12u3build0.22.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- php-phpseclib Fixed in 2.0.1-1ubuntu0.1~esm2Available with Ubuntu Pro: https://ubuntu.com/pro
- phpseclib Fixed in 1.0.1-3ubuntu0.1+esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- php-phpseclib Fixed in 2.0.9-1ubuntu0.1~esm2Available with Ubuntu Pro: https://ubuntu.com/pro
- phpseclib Fixed in 1.0.9-1ubuntu0.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- php-phpseclib Fixed in 2.0.23-2ubuntu0.1~esm2Available with Ubuntu Pro: https://ubuntu.com/pro
- phpseclib Fixed in 1.0.18-2ubuntu0.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- php-phpseclib Fixed in 2.0.36-1ubuntu0.1~esm2Available with Ubuntu Pro: https://ubuntu.com/pro
- php-phpseclib3 Fixed in 3.0.13-1ubuntu0.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
- phpseclib Fixed in 1.0.20-1ubuntu0.1~esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.