CVE-2023-0286

X.400 address type confusion in X.509 GeneralName

Published Feb 8, 2023 CVSS 3.1 · 7.4 High EPSS 68.4% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3325-1 openssl security update
Debian DSA Debian DSA DSA-5343-1 openssl security update
Github GHSA Github GHSA GHSA-x4qr-2fvf-3mr5 Vulnerable OpenSSL included in cryptography wheels
Ubuntu USN Ubuntu USN USN-5844-1 OpenSSL vulnerabilities
Ubuntu USN Ubuntu USN USN-5845-1 OpenSSL vulnerabilities
Ubuntu USN Ubuntu USN USN-5845-2 OpenSSL vulnerabilities
Ubuntu USN Ubuntu USN USN-6564-1 Node.js vulnerabilities
Ubuntu USN Ubuntu USN USN-7894-1 EDK II vulnerabilities
References
Link Providers
https://cert-portal.siemens.com/productcert/html/ssa-028723.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-203374.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-264815.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-337522.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-398330.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-455250.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-556635.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-561322.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-625862.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-769027.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-794697.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-879734.html cve-icon
https://cert-portal.siemens.com/productcert/html/ssa-943925.html cve-icon
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txt cve-icon cve-icon
https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sig cve-icon cve-icon
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9 cve-icon cve-icon
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658 cve-icon cve-icon
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4d cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-0286 cve-icon
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003 cve-icon
https://security.gentoo.org/glsa/202402-08 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-0286 cve-icon
https://www.openssl.org/news/secadv/20230207.txt cve-icon cve-icon cve-icon
History
Type Values Removed Values Added
Metrics epss

{'score': 0.89545}

epss

{'score': 0.8964}

Type Values Removed Values Added
Metrics epss

{'score': 0.8964}

epss

{'score': 0.89545}

Type Values Removed Values Added
CPEs cpe:/a:redhat:rhel_eus:9.4
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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. 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.
Type Values Removed Values Added
First Time appeared Redhat logging
CPEs cpe:/a:redhat:logging:5.9::el9
Vendors & Products Redhat logging
Type Values Removed Values Added
CPEs cpe:/o:redhat:rhel_aus:7.7