cve-2023-0286
Vulnerability from cvelistv5
Published
2023-02-08 19:01
Modified
2024-08-02 05:02
Severity ?
Summary
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.
References
openssl-security@openssl.orghttps://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txtThird Party Advisory
openssl-security@openssl.orghttps://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sigThird Party Advisory
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9Patch, Vendor Advisory
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658Patch, Vendor Advisory
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4dPatch, Vendor Advisory
openssl-security@openssl.orghttps://security.gentoo.org/glsa/202402-08
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20230207.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txtThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sigThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4dPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202402-08
af854a3a-2127-422b-91ae-364da2661108https://www.openssl.org/news/secadv/20230207.txtVendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website


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