suse-su-2019:14014-1
Vulnerability from csaf_suse
Published
2019-04-09 09:17
Modified
2019-04-09 09:17
Summary
Security update for libtcnative-1-0

Notes

Title of the patch
Security update for libtcnative-1-0
Description of the patch
This update for libtcnative-1-0 to version 1.1.34 fixes the following issues: - CVE-2017-15698: Fixed an improper handling of fields with more than 127 bytes which could allow invalid client certificates to be accepted (bsc#1078679). - CVE-2018-8019: When using an OCSP responder did not correctly handle invalid responses. This allowed for revoked client certificates to be incorrectly identified. It was therefore possible for users to authenticate with revoked certificates when using mutual TLS (bsc#1103348). - CVE-2018-8020: Did not properly check OCSP pre-produced responses. Revoked client certificates may have not been properly identified, allowing for users to authenticate with revoked certificates to connections that require mutual TLS (bsc#1103347). For a complete list of changes please see http://tomcat.apache.org/native-1.1-doc/miscellaneous/changelog.html
Patchnames
sleposp3-libtcnative-1-0-14014,slessp4-libtcnative-1-0-14014
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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        "text": "This update for libtcnative-1-0 to version 1.1.34 fixes the following issues:\n\n- CVE-2017-15698: Fixed an improper handling of fields with more than 127 bytes \n  which could allow invalid client certificates to be accepted (bsc#1078679).\n- CVE-2018-8019: When using an OCSP responder did not correctly handle invalid\n  responses. This allowed for revoked client certificates to be incorrectly\n  identified. It was therefore possible for users to authenticate with revoked\n  certificates when using mutual TLS (bsc#1103348).\n- CVE-2018-8020: Did not properly check OCSP pre-produced responses. Revoked\n  client certificates may have not been properly identified, allowing for users\n  to authenticate with revoked certificates to connections that require mutual\n  TLS (bsc#1103347).\n\nFor a complete list of changes please see\nhttp://tomcat.apache.org/native-1.1-doc/miscellaneous/changelog.html\n",
        "title": "Description of the patch"
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        "title": "Patchnames"
      },
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        "relates_to_product_reference": "SUSE Linux Enterprise Server 11 SP4-LTSS"
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  "vulnerabilities": [
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      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2017-15698"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. Users not using OCSP checks are not affected by this vulnerability.",
          "title": "CVE description"
        }
      ],
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        }
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        {
          "category": "general",
          "text": "When using an OCSP responder Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 did not correctly handle invalid responses. This allowed for revoked client certificates to be incorrectly identified. It was therefore possible for users to authenticate with revoked certificates when using mutual TLS. Users not using OCSP checks are not affected by this vulnerability.",
          "title": "CVE description"
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      "scores": [
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            "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.s390x",
            "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.x86_64"
          ]
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      "threats": [
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          "date": "2019-04-09T09:17:42Z",
          "details": "moderate"
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      "title": "CVE-2018-8019"
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    {
      "cve": "CVE-2018-8020",
      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2018-8020"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 has a flaw that does not properly check OCSP pre-produced responses, which are lists (multiple entries) of certificate statuses. Subsequently, revoked client certificates may not be properly identified, allowing for users to authenticate with revoked certificates to connections that require mutual TLS. Users not using OCSP checks are not affected by this vulnerability.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.ppc64",
          "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.s390x",
          "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-8020",
          "url": "https://www.suse.com/security/cve/CVE-2018-8020"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1103347 for CVE-2018-8020",
          "url": "https://bugzilla.suse.com/1103347"
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      ],
      "remediations": [
        {
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Point of Sale 11 SP3:libtcnative-1-0-1.3.4-12.5.5.2.i586",
            "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.i586",
            "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.ppc64",
            "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.s390x",
            "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
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            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.0"
          },
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            "SUSE Linux Enterprise Server 11 SP4-LTSS:libtcnative-1-0-1.3.4-12.5.5.2.s390x",
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          "category": "impact",
          "date": "2019-04-09T09:17:42Z",
          "details": "important"
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      "title": "CVE-2018-8020"
    }
  ]
}


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