CVE-2021-3450
Vulnerability from cvelistv5
Published
2021-03-25 14:25
Modified
2024-09-17 03:07
Severity ?
Summary
CA certificate check bypass with X509_V_FLAG_X509_STRICT
References
openssl-security@openssl.orghttp://www.openwall.com/lists/oss-security/2021/03/27/1Mailing List, Third Party Advisory
openssl-security@openssl.orghttp://www.openwall.com/lists/oss-security/2021/03/27/2Mailing List, Third Party Advisory
openssl-security@openssl.orghttp://www.openwall.com/lists/oss-security/2021/03/28/3Mailing List, Third Party Advisory
openssl-security@openssl.orghttp://www.openwall.com/lists/oss-security/2021/03/28/4Mailing List, Third Party Advisory
openssl-security@openssl.orghttps://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfThird Party Advisory
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=2a40b7bc7b94dd7de897a74571e7024f0cf0d63b
openssl-security@openssl.orghttps://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44845Third Party Advisory
openssl-security@openssl.orghttps://kc.mcafee.com/corporate/index?page=content&id=SB10356Third Party Advisory
openssl-security@openssl.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CCBFLLVQVILIVGZMBJL3IXZGKWQISYNP/
openssl-security@openssl.orghttps://mta.openssl.org/pipermail/openssl-announce/2021-March/000198.htmlMailing List, Vendor Advisory
openssl-security@openssl.orghttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0013Third Party Advisory
openssl-security@openssl.orghttps://security.FreeBSD.org/advisories/FreeBSD-SA-21:07.openssl.ascThird Party Advisory
openssl-security@openssl.orghttps://security.gentoo.org/glsa/202103-03Third Party Advisory
openssl-security@openssl.orghttps://security.netapp.com/advisory/ntap-20210326-0006/Third Party Advisory
openssl-security@openssl.orghttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-openssl-2021-GHY28dJdThird Party Advisory
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20210325.txtVendor Advisory
openssl-security@openssl.orghttps://www.oracle.com//security-alerts/cpujul2021.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpuApr2021.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2021-05Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2021-08Third Party Advisory
openssl-security@openssl.orghttps://www.tenable.com/security/tns-2021-09Third Party Advisory
Impacted products
OpenSSLOpenSSL
Show details on NVD website

To clipboard 

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              "name": "https://security.netapp.com/advisory/ntap-20210326-0006/",
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              "url": "https://security.netapp.com/advisory/ntap-20210326-0006/"
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              "name": "https://mta.openssl.org/pipermail/openssl-announce/2021-March/000198.html",
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            {
              "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
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  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2021-3450",
    "datePublished": "2021-03-25T14:25:14.287899Z",
    "dateReserved": "2021-03-19T00:00:00",
    "dateUpdated": "2024-09-17T03:07:10.879Z",
    "state": "PUBLISHED"
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If a \\\"purpose\\\" has been configured then there is a subsequent opportunity for checks that the certificate is a valid CA. All of the named \\\"purpose\\\" values implemented in libcrypto perform this check. Therefore, where a purpose is set the certificate chain will still be rejected even when the strict flag has been used. A purpose is set by default in libssl client and server certificate verification routines, but it can be overridden or removed by an application. In order to be affected, an application must explicitly set the X509_V_FLAG_X509_STRICT verification flag and either not set a purpose for the certificate verification or, in the case of TLS client or server applications, override the default purpose. OpenSSL versions 1.1.1h and newer are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. 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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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