Executive Summary

Informations
Name CVE-2023-0401 First vendor Publication 2023-02-08
Vendor Cve Last vendor Modification 2025-02-13

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

A NULL pointer can be dereferenced when signatures are being verified on PKCS7 signed or signedAndEnveloped data. In case the hash algorithm used for the signature is known to the OpenSSL library but the implementation of the hash algorithm is not available the digest initialization will fail. There is a missing check for the return value from the initialization function which later leads to invalid usage of the digest API most likely leading to a crash.

The unavailability of an algorithm can be caused by using FIPS enabled configuration of providers or more commonly by not loading the legacy provider.

PKCS7 data is processed by the SMIME library calls and also by the time stamp (TS) library calls. The TLS implementation in OpenSSL does not call these functions however third party applications would be affected if they call these functions to verify signatures on untrusted data.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0401

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 424
Application 1

Sources (Detail)

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=d3b6dfd70db844c4...
https://security.gentoo.org/glsa/202402-08
https://www.openssl.org/news/secadv/20230207.txt
Source Url

Alert History

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Date Informations
2025-03-29 03:15:20
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2025-03-28 13:35:33
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2025-02-13 21:22:00
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2024-11-28 14:19:04
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2024-08-02 13:43:34
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2024-08-02 01:31:31
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2024-03-01 13:29:06
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2024-02-04 13:28:04
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2024-02-02 02:41:05
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2024-02-01 12:28:39
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2023-11-07 21:30:16
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2023-09-05 13:36:59
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2023-09-05 01:28:01
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2023-09-02 13:34:10
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2023-09-02 01:28:27
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2023-08-12 13:40:51
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2023-08-12 01:27:44
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2023-08-11 13:31:44
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2023-08-11 01:28:36
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2023-08-09 02:19:14
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2023-08-06 13:29:15
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2023-08-06 01:27:24
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2023-08-04 13:29:41
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2023-08-04 01:27:47
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2023-07-19 09:27:29
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2023-07-14 13:29:36
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2023-07-14 01:27:28
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2023-03-29 02:29:22
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2023-03-28 12:27:30
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2023-02-24 21:27:25
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2023-02-19 00:27:19
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2023-02-09 17:27:17
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2023-02-09 00:27:16
  • First insertion