Executive Summary

Informations
Name CVE-2023-0286 First vendor Publication 2023-02-08
Vendor Cve Last vendor Modification 2024-02-04

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Overall CVSS Score 7.4
Base Score 7.4 Environmental Score 7.4
impact SubScore 5.2 Temporal Score 7.4
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
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

There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING.

When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0286

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 425
Application 1
Application 4

Sources (Detail)

https://security.gentoo.org/glsa/202402-08
Source Url
MISC https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txt
https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sig
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1b...
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d...
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350...
https://www.openssl.org/news/secadv/20230207.txt

Alert History

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Date Informations
2024-02-04 13:28:04
  • Multiple Updates
2024-02-02 02:41:04
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2024-02-01 12:28:38
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2023-11-07 21:30:16
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2023-09-05 13:36:57
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2023-09-05 01:28:01
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2023-09-02 13:34:07
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2023-09-02 01:28:27
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2023-08-12 13:40:49
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2023-08-12 01:27:44
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2023-08-11 13:31:43
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2023-08-11 01:28:35
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2023-08-09 02:19:13
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2023-08-06 13:29:12
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2023-08-06 01:27:24
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2023-08-04 13:29:40
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2023-08-04 01:27:47
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2023-07-19 13:19:51
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2023-07-19 09:27:29
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2023-07-14 13:29:34
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2023-07-14 01:27:27
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2023-03-28 13:27:27
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2023-03-28 12:27:30
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2023-03-28 00:27:27
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2023-02-24 21:27:25
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2023-02-22 00:27:18
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2023-02-19 00:27:19
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2023-02-09 17:27:17
  • Multiple Updates
2023-02-09 00:27:16
  • First insertion