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  <DocumentTitle xml:lang="en">Security update for tboot</DocumentTitle>
  <DocumentType>SUSE Patch</DocumentType>
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    <ContactDetails>security@suse.de</ContactDetails>
    <IssuingAuthority>SUSE Security Team</IssuingAuthority>
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    <Identification>
      <ID>openSUSE-SU-2017:3100-1</ID>
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    <Status>Final</Status>
    <Version>1</Version>
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        <Number>1</Number>
        <Date>2017-11-25T19:58:43Z</Date>
        <Description>current</Description>
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    <Note Title="Topic" Type="Summary" Ordinal="1" xml:lang="en">Security update for tboot</Note>
    <Note Title="Details" Type="General" Ordinal="2" xml:lang="en">This update for tboot fixes the following issues:

Security issues fixed:

- CVE-2017-16837: Fix tbootfailed to validate a number of immutable function pointers, which could allow an attacker to bypass the chain of trust and execute arbitrary code (boo#1068390).
- Make tboot package compatible with OpenSSL 1.1.0 for SLE-15 support (boo#1067229).

Bug fixes:

- Update to new upstream version.
  See release notes for details (1.9.6; 1.9.5, FATE#321510; 1.9.4, FATE#320665; 1.8.3, FATE#318542):
  * https://sourceforge.net/p/tboot/code/ci/default/tree/CHANGELOG
- Fix some gcc7 warnings that lead to errors. (boo#1041264)
- Fix wrong pvops kernel config matching (boo#981948) 
- Fix a excessive stack usage pattern that could lead to resets/crashes (boo#967441)
- fixes a boot issue on Skylake (boo#964408)
- Trim filler words from description; use modern macros over shell vars.
- Add reproducible.patch to call gzip -n to make build fully reproducible.
</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>
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  <DocumentDistribution xml:lang="en">Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0)</DocumentDistribution>
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      <URL>https://lists.opensuse.org/opensuse-security-announce/2017-11/msg00039.html</URL>
      <Description>E-Mail link for openSUSE-SU-2017:3100-1</Description>
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      <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>
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    <CVE>CVE-2017-16837</CVE>
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      <Remediation Type="Vendor Fix">
        <Description xml:lang="en">Please Install the update.</Description>
        <URL>https://lists.opensuse.org/opensuse-security-announce/2017-11/msg00039.html</URL>
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        <URL>https://www.suse.com/security/cve/CVE-2017-16837.html</URL>
        <Description>CVE-2017-16837</Description>
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        <URL>https://bugzilla.suse.com/1068390</URL>
        <Description>SUSE Bug 1068390</Description>
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      <Reference>
        <URL>https://bugzilla.suse.com/889339</URL>
        <Description>SUSE Bug 889339</Description>
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