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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:205896
[Eng]
Version
1
Class
patch
ALTXid
427002
Language
Russian
Severity
High
Title
Обновление RHSA-2023:1438 : устранение уязвимостей в openssl
Description
openssl: X.400 address type confusion in X.509 GeneralName.
Family
unix
Platform
Red Hat Enterprise Linux 6
Product
openssl
Reference
VENDOR: RHSA-2023:1438
VENDOR: RHSA-2023:1438
Id:
RHSA-2023:1438
Reference:
https://access.redhat.com/errata/RHSA-2023:1438
CVE: CVE-2023-0286
CVE: CVE-2023-0286
Id:
CVE-2023-0286
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0286
Comment
: 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.
CVSSv3 Score:
7.4
Attack vector:
NETWORK
Attack complexity:
HIGH
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
CWE:
843 (Access of Resource Using Incompatible Type ('Type Confusion'))
References:
https://www.openssl.org/news/secadv/20230207.txt (MISC)
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9 (MISC)
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658 (MISC)
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4d (MISC)
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txt (MISC)
https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sig (MISC)
https://security.gentoo.org/glsa/202402-08 ()
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