CVE ID:	CVE-2023-0286
Description:	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.
Test IDs:	1.3.6.1.4.1.25623.1.1.2.2023.1962   1.3.6.1.4.1.25623.1.1.2.2023.2077   1.3.6.1.4.1.25623.1.1.2.2023.1853   1.3.6.1.4.1.25623.1.1.2.2023.2025   1.3.6.1.4.1.25623.1.1.2.2023.2277   1.3.6.1.4.1.25623.1.1.2.2023.1984   1.3.6.1.4.1.25623.1.1.2.2023.2129   1.3.6.1.4.1.25623.1.1.2.2023.2301   1.3.6.1.4.1.25623.1.1.2.2023.2004   1.3.6.1.4.1.25623.1.0.884281   1.3.6.1.4.1.25623.1.1.2.2023.1878
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2023-0286 https://security.gentoo.org/glsa/202402-08 1.0.2zg patch (premium) https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4d 1.1.1t git commit https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9 3.0.8 git commit https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658 OpenSSL Advisory https://www.openssl.org/news/secadv/20230207.txt https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txt 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://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sig