{"id":"CVE-2023-0286","published":"2023-02-08T19:01:50Z","modified":"2026-10-14T19:23:44Z","title":"X.400 address type confusion in X.509 GeneralName","vendor":"OpenSSL","product":"OpenSSL","tier":"core","eol":null,"affectedVersions":[{"vendor":"OpenSSL","product":"OpenSSL","versions":[">= 3.0.0, < 3.0.8",">= 1.1.1, < 1.1.1t",">= 1.0.2, < 1.0.2zg"]}],"description":{"text":"There is a type confusion vulnerability relating to X.400 address processing\ninside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but\nthe public structure definition for GENERAL_NAME incorrectly specified the type\nof the x400Address field as ASN1_TYPE. This field is subsequently interpreted by\nthe OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an\nASN1_STRING.\n\nWhen CRL checking is enabled (i.e. the application sets the\nX509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass\narbitrary pointers to a memcmp call, enabling them to read memory contents or\nenact a denial of service. In most cases, the attack requires the attacker to\nprovide both the certificate chain and CRL, neither of which need to have a\nvalid signature. If the attacker only controls one of these inputs, the other\ninput must already contain an X.400 address as a CRL distribution point, which\nis uncommon. As such, this vulnerability is most likely to only affect\napplications which have implemented their own functionality for retrieving CRLs\nover a network.","provenance":"source","from":"CVE.org"},"summary":null,"cvss":{"score":7.4,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.69286,"percentile":0.99356,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":26,"pulses":[{"name":"ripe.arin.enom.cpanel.cpcalendar.iana.networksolutions.02050.webdisk.webmail.","url":"https://otx.alienvault.com/pulse/69fdc02bea1e4ec923b01688","created":"2026-05-08"},{"name":"ACTUALIZACION | SAP Security Patch Day – September 2024","url":"https://otx.alienvault.com/pulse/66eb32068c2650ba5ca663dc","created":"2024-09-18"},{"name":"ACTUALIZACION | SAP Security Patch Day – August 2024","url":"https://otx.alienvault.com/pulse/66bf8a2b7b8312e6727e18bd","created":"2024-08-16"},{"name":"(I Cloned Title & Pulse) WHO EVERYONE HAS BEEN LOOKING FOR  [Pulse of  IoC's Curated  by user Streaming Ex]","url":"https://otx.alienvault.com/pulse/669f882c5109175fe742fe58","created":"2024-07-23"},{"name":"ACTUALIZACION  IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data is vulnerable to multiple Operator package issues","url":"https://otx.alienvault.com/pulse/661d97bab11ed8d2c64cdfd6","created":"2024-04-15"},{"name":"WHO IS MOBI GAMES AKA NIC","url":"https://otx.alienvault.com/pulse/65709e245df26a29e78d740a","created":"2023-12-06"},{"name":"WHO IS MOBI GAMES AKA NIC","url":"https://otx.alienvault.com/pulse/65709e1db42d958b88f07ca8","created":"2023-12-06"},{"name":"WHO EVERYONE HAS BEEN LOOKING FOR","url":"https://otx.alienvault.com/pulse/65709e14974bdb5d6dbda091","created":"2023-12-06"},{"name":"WHO IS NIC","url":"https://otx.alienvault.com/pulse/65709ca13f7a17df14af4912","created":"2023-12-06"},{"name":"SAV.COM WHO IS SOURCEADULT.COM","url":"https://otx.alienvault.com/pulse/64c826748caebf09e24fbd12","created":"2023-07-31"}],"provenance":"machine"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"}],"references":[{"url":"https://www.openssl.org/news/secadv/20230207.txt","tags":["vendor-advisory"]},{"url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658","tags":["patch"]},{"url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9","tags":["patch"]},{"url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4d","tags":["patch"]},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sig","tags":[]},{"url":"https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txt","tags":[]},{"url":"https://security.gentoo.org/glsa/202402-08","tags":[]},{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-203374.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-794697.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-561322.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-264815.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-943925.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-455250.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-556635.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-879734.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-625862.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-337522.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-769027.html","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-028723.html","tags":[]}],"techniques":[],"reports":[],"affected":[{"ecosystem":"PyPI","package":"cryptography","vulnerableRanges":[">=0.8.1, <39.0.1"],"patched":["39.0.1"],"from":["GHSA-x4qr-2fvf-3mr5","PYSEC-2026-800"],"provenance":"source"},{"ecosystem":"crates.io","package":"openssl-src","vulnerableRanges":["<111.25.0",">=300.0.0, <300.0.12",">=0.0.0-0, <111.25.0"],"patched":["111.25.0","300.0.12"],"from":["GHSA-x4qr-2fvf-3mr5","RUSTSEC-2023-0006"],"provenance":"source"}],"advisories":[{"id":"GHSA-x4qr-2fvf-3mr5","url":"https://github.com/advisories/GHSA-x4qr-2fvf-3mr5","severity":"HIGH","ecosystem":"PyPI","package":"cryptography","vulnerableRanges":[">=0.8.1, 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(CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2023-0286","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":28.1,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.87,"detail":"percentile 0.9936"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"26 pulses"},{"name":"CVSS severity","points":5.18,"detail":"base score 7.4"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}