rhsa-2021_1200
Vulnerability from csaf_redhat
Published
2021-04-14 15:59
Modified
2024-11-05 23:27
Summary
Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP7 security update

Notes

Topic
Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 7 zip release for RHEL 7, RHEL 8 and Microsoft Windows is available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release adds the new Apache HTTP Server 2.4.37 Service Pack 7 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 6 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release. Security fix(es): * openssl: NULL pointer deref in signature_algorithms processing (CVE-2021-3449) * openssl: CA certificate check bypass with X509_V_FLAG_X509_STRICT (CVE-2021-3450) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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{
  "document": {
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      "text": "Important"
    },
    "category": "csaf_security_advisory",
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    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 7 zip release for RHEL 7, RHEL 8 and Microsoft Windows is available.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience.\n\nThis release adds the new Apache HTTP Server 2.4.37 Service Pack 7 packages that are part of the JBoss Core Services offering.\n\nThis release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 6 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release.\n\nSecurity fix(es):\n\n* openssl: NULL pointer deref in signature_algorithms processing (CVE-2021-3449)\n\n* openssl: CA certificate check bypass with X509_V_FLAG_X509_STRICT (CVE-2021-3450)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
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    "publisher": {
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      "contact_details": "https://access.redhat.com/security/team/contact/",
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      "name": "Red Hat Product Security",
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    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2021:1200",
        "url": "https://access.redhat.com/errata/RHSA-2021:1200"
      },
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        "url": "https://access.redhat.com/security/updates/classification/#important"
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      {
        "category": "external",
        "summary": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.apachehttp\u0026downloadType=securityPatches\u0026version=2.4.37",
        "url": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.apachehttp\u0026downloadType=securityPatches\u0026version=2.4.37"
      },
      {
        "category": "external",
        "summary": "1941547",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1941547"
      },
      {
        "category": "external",
        "summary": "1941554",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1941554"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_1200.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP7 security update",
    "tracking": {
      "current_release_date": "2024-11-05T23:27:26+00:00",
      "generator": {
        "date": "2024-11-05T23:27:26+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.1.1"
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      },
      "id": "RHSA-2021:1200",
      "initial_release_date": "2021-04-14T15:59:58+00:00",
      "revision_history": [
        {
          "date": "2021-04-14T15:59:58+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2021-04-14T15:59:58+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-05T23:27:26+00:00",
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      "status": "final",
      "version": "3"
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  "product_tree": {
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                "name": "JBCS 2.4.37 SP7",
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        "name": "Red Hat"
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "the OpenSSL project"
          ]
        },
        {
          "names": [
            "Nokia"
          ],
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2021-3449",
      "discovery_date": "2021-03-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1941554"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in openssl. A server crash and denial of service attack could occur if a client sends a TLSv1.2 renegotiation ClientHello and omits the signature_algorithms extension but includes a signature_algorithms_cert extension. The highest threat from this vulnerability is to system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "openssl: NULL pointer dereference in signature_algorithms processing",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw only affects OpenSSL 1.1.1, older versions are not affected.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "JBCS 2.4.37 SP7"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-3449"
        },
        {
          "category": "external",
          "summary": "RHBZ#1941554",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1941554"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-3449",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-3449"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-3449",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3449"
        },
        {
          "category": "external",
          "summary": "https://www.openssl.org/news/secadv/20210325.txt",
          "url": "https://www.openssl.org/news/secadv/20210325.txt"
        }
      ],
      "release_date": "2021-03-25T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-04-14T15:59:58+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
          "product_ids": [
            "JBCS 2.4.37 SP7"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:1200"
        },
        {
          "category": "workaround",
          "details": "This flaw can be mitigated by disabling TLS renegotiation on servers compiled with OpenSSL. It is enabled by default, but can be disabled for servers which do not require it and can be used to mitigate this flaw. Versions of httpd package shipped with Red Hat Enterprise Linux 8 have TLS renegotiation disabled by default.",
          "product_ids": [
            "JBCS 2.4.37 SP7"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "JBCS 2.4.37 SP7"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "openssl: NULL pointer dereference in signature_algorithms processing"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "the OpenSSL Project"
          ]
        },
        {
          "names": [
            "Benjamin Kaduk"
          ],
          "summary": "Acknowledged by upstream."
        },
        {
          "names": [
            "Xiang Ding and others"
          ],
          "organization": "Akamai",
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2021-3450",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2021-03-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1941547"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in openssl. The flag that enables additional security checks of certificates present in a certificate chain was not enabled allowing a confirmation step to verify that certificates in the chain are valid CA certificates is bypassed. The highest threat from this vulnerability is to data confidentiality and integrity.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "openssl: CA certificate check bypass with X509_V_FLAG_X509_STRICT",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw affects openssl  1.1.1h  and above only, older versions are not affected by this flaw.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "JBCS 2.4.37 SP7"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-3450"
        },
        {
          "category": "external",
          "summary": "RHBZ#1941547",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1941547"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-3450",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-3450"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-3450",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3450"
        },
        {
          "category": "external",
          "summary": "https://www.openssl.org/news/secadv/20210325.txt",
          "url": "https://www.openssl.org/news/secadv/20210325.txt"
        }
      ],
      "release_date": "2021-03-25T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-04-14T15:59:58+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
          "product_ids": [
            "JBCS 2.4.37 SP7"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:1200"
        },
        {
          "category": "workaround",
          "details": "The following conditions have to be met for an application compiled with OpenSSL to be vulnerable:\n\n- the CA trusted by the system must issue or have issued certificates that don\u0027t include basic Key Usage extension.\n- the CA certificates must not have path length constraint set to a value that would limit the certificate chain to just the subscriber certificates (i.e. CA certificate just above the subscriber cert must not have 0 as the path length constraint, and any CA above it must not have it increase by more than 1 for every level in the hierarchy)\n- the attacker needs to have access to such subscriber certificate (without basic Key Usage and linking up to CAs without path length constraints or not effectively constraining certs issued by this certificate)\n- the application under attack must use the X509_V_FLAG_X509_STRICT flag and must not set purpose for the certificate verification\n\nif any of the above conditions are not met then the application compiled with OpenSSL is not vulnerable to the CVE.",
          "product_ids": [
            "JBCS 2.4.37 SP7"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "JBCS 2.4.37 SP7"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "openssl: CA certificate check bypass with X509_V_FLAG_X509_STRICT"
    }
  ]
}


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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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