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  <DocumentTitle xml:lang="en">Recommended update for tboot</DocumentTitle>
  <DocumentType>SUSE Patch</DocumentType>
  <DocumentPublisher Type="Vendor">
    <ContactDetails>security@suse.de</ContactDetails>
    <IssuingAuthority>SUSE Security Team</IssuingAuthority>
  </DocumentPublisher>
  <DocumentTracking>
    <Identification>
      <ID>SUSE-SU-2017:3090-1</ID>
    </Identification>
    <Status>Final</Status>
    <Version>1</Version>
    <RevisionHistory>
      <Revision>
        <Number>1</Number>
        <Date>2017-11-24T15:17:52Z</Date>
        <Description>current</Description>
      </Revision>
    </RevisionHistory>
    <InitialReleaseDate>2017-11-24T15:17:52Z</InitialReleaseDate>
    <CurrentReleaseDate>2017-11-24T15:17:52Z</CurrentReleaseDate>
    <Generator>
      <Engine>cve-database/bin/generate-cvrf.pl</Engine>
      <Date>2017-02-24T01:00:00Z</Date>
    </Generator>
  </DocumentTracking>
  <DocumentNotes>
    <Note Title="Topic" Type="Summary" Ordinal="1" xml:lang="en">Recommended update for tboot</Note>
    <Note Title="Details" Type="General" Ordinal="2" xml:lang="en">This update for tboot fixes the following issues:

Security issue fixed:

- CVE-2017-16837: Certain function pointers in Trusted Boot (tboot) through 1.9.6 are
  notvalidated and can cause arbitrary code execution, which allows local users
  tooverwrite dynamic PCRs of Trusted Platform Module (TPM) by h (bsc#1068390)

Bug fixes:

- Fixed failed trusted boot on some systems like Intel Xeon 'Purley 8s' processors. The
  following error message showed: 'TBOOT: wait-for-sipi loop timed-out'. Booting continued
  but 'TXT measured launch' was wrongly reported as FALSE. (bsc#1057555)
</Note>
    <Note Title="Terms of Use" Type="Legal Disclaimer" Ordinal="3" xml:lang="en">The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).</Note>
    <Note Title="Patchnames" Type="Details" Ordinal="4" xml:lang="en">SUSE-SLE-SERVER-12-SP2-2017-1901,SUSE-SLE-SERVER-12-SP3-2017-1901</Note>
  </DocumentNotes>
  <DocumentDistribution xml:lang="en">Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0)</DocumentDistribution>
  <DocumentReferences>
    <Reference Type="Self">
      <URL>https://www.suse.com/support/update/announcement/2017/suse-su-20173090-1/</URL>
      <Description>Link for SUSE-SU-2017:3090-1</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://lists.suse.com/pipermail/sle-security-updates/2017-November/003415.html</URL>
      <Description>E-Mail link for SUSE-SU-2017:3090-1</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/support/security/rating/</URL>
      <Description>SUSE Security Ratings</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/1057555</URL>
      <Description>SUSE Bug 1057555</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/1068390</URL>
      <Description>SUSE Bug 1068390</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2017-16837/</URL>
      <Description>SUSE CVE CVE-2017-16837 page</Description>
    </Reference>
  </DocumentReferences>
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      <Branch Type="Product Name" Name="SUSE Linux Enterprise Server 12 SP3">
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    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">Certain function pointers in Trusted Boot (tboot) through 1.9.6 are not validated and can cause arbitrary code execution, which allows local users to overwrite dynamic PCRs of Trusted Platform Module (TPM) by hooking these function pointers.</Note>
    </Notes>
    <CVE>CVE-2017-16837</CVE>
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      <Status Type="Fixed">
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        <ProductID>SUSE Linux Enterprise Server for SAP Applications 12 SP3:tboot-20160518_1.9.4-7.5.1</ProductID>
      </Status>
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    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSet>
        <BaseScore>6.9</BaseScore>
        <Vector>AV:L/AC:M/Au:N/C:C/I:C/A:C</Vector>
      </ScoreSet>
    </CVSSScoreSets>
    <Remediations>
      <Remediation Type="Vendor Fix">
        <Description xml:lang="en">To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
</Description>
        <URL>https://www.suse.com/support/update/announcement/2017/suse-su-20173090-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2017-16837.html</URL>
        <Description>CVE-2017-16837</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1068390</URL>
        <Description>SUSE Bug 1068390</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/889339</URL>
        <Description>SUSE Bug 889339</Description>
      </Reference>
    </References>
  </Vulnerability>
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