<?xml version="1.0" encoding="UTF-8"?>
<cvrfdoc xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:cpe="http://cpe.mitre.org/language/2.0" xmlns:cvrf="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/cvrf" xmlns:cvrf-common="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/common" xmlns:cvssv2="http://scap.nist.gov/schema/cvss-v2/1.0" xmlns:cvssv3="https://www.first.org/cvss/cvss-v3.0.xsd" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ns0="http://purl.org/dc/elements/1.1/" xmlns:prod="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/prod" xmlns:scap-core="http://scap.nist.gov/schema/scap-core/1.0" xmlns:sch="http://purl.oclc.org/dsdl/schematron" xmlns:vuln="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/cvrf">
  <DocumentTitle xml:lang="en">Security update for kernel live patch 2</DocumentTitle>
  <DocumentType>SUSE Patch</DocumentType>
  <DocumentPublisher Type="Vendor">
    <ContactDetails>security@suse.de</ContactDetails>
    <IssuingAuthority>SUSE Security Team</IssuingAuthority>
  </DocumentPublisher>
  <DocumentTracking>
    <Identification>
      <ID>SUSE-SU-2016:0384-1</ID>
    </Identification>
    <Status>Final</Status>
    <Version>1</Version>
    <RevisionHistory>
      <Revision>
        <Number>1</Number>
        <Date>2016-02-08T13:46:19Z</Date>
        <Description>current</Description>
      </Revision>
    </RevisionHistory>
    <InitialReleaseDate>2016-02-08T13:46:19Z</InitialReleaseDate>
    <CurrentReleaseDate>2016-02-08T13:46:19Z</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">Security update for kernel live patch 2</Note>
    <Note Title="Details" Type="General" Ordinal="2" xml:lang="en">
This kernel live patch for Linux Kernel 3.12.36-38.1 fixes security issues and bugs:

Security issues fixed:
- CVE-2015-8539: A negatively instantiated user key could have been used
  by a local user to leverage privileges (bnc#958601).

- CVE-2015-6937: A NULL pointer dereference flaw was found in the Reliable
  Datagram Sockets (RDS) implementation allowing a local user to cause
  system DoS. A verification was missing that the underlying transport
  exists when a connection was created. (bsc#953052)

- CVE-2015-7990: RDS: Verify the underlying transport exists before
  creating a connection, preventing possible DoS (bsc#953052).

- CVE-2015-7872: Possible crash when trying to garbage collect an
  uninstantiated keyring (bsc#951542).

- CVE-2015-2925: The prepend_path function in fs/dcache.c in the Linux
  kernel did not properly handle rename actions inside a bind mount, which
  allowed local users to bypass an intended container protection mechanism
  by renaming a directory, related to a 'double-chroot attack (bnc#951625).

Non-security bugfix were also done:
- xfs: Fix lost direct IO write in the last block (bsc#954005).
- simple fix in kallsyms initialization (bsc#940342 bsc#916225)
  </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-Live-Patching-12-2016-224</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/2016/suse-su-20160384-1/</URL>
      <Description>Link for SUSE-SU-2016:0384-1</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://lists.suse.com/pipermail/sle-security-updates/2016-February/001859.html</URL>
      <Description>E-Mail link for SUSE-SU-2016:0384-1</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/916225</URL>
      <Description>SUSE Bug 916225</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/940342</URL>
      <Description>SUSE Bug 940342</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/951542</URL>
      <Description>SUSE Bug 951542</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/951625</URL>
      <Description>SUSE Bug 951625</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/953052</URL>
      <Description>SUSE Bug 953052</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/954005</URL>
      <Description>SUSE Bug 954005</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/958601</URL>
      <Description>SUSE Bug 958601</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2015-2925/</URL>
      <Description>SUSE CVE CVE-2015-2925 page</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2015-6937/</URL>
      <Description>SUSE CVE CVE-2015-6937 page</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2015-7872/</URL>
      <Description>SUSE CVE CVE-2015-7872 page</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2015-7990/</URL>
      <Description>SUSE CVE CVE-2015-7990 page</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2015-8539/</URL>
      <Description>SUSE CVE CVE-2015-8539 page</Description>
    </Reference>
  </DocumentReferences>
  <ProductTree xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/prod">
    <Branch Type="Product Family" Name="SUSE Linux Enterprise Live Patching 12">
      <Branch Type="Product Name" Name="SUSE Linux Enterprise Live Patching 12">
        <FullProductName ProductID="SUSE Linux Enterprise Live Patching 12" CPE="cpe:/o:suse:sle-live-patching:12">SUSE Linux Enterprise Live Patching 12</FullProductName>
      </Branch>
    </Branch>
    <Branch Type="Product Version" Name="kgraft-patch-3_12_36-38-default-5-2.1">
      <FullProductName ProductID="kgraft-patch-3_12_36-38-default-5-2.1">kgraft-patch-3_12_36-38-default-5-2.1</FullProductName>
    </Branch>
    <Branch Type="Product Version" Name="kgraft-patch-3_12_36-38-xen-5-2.1">
      <FullProductName ProductID="kgraft-patch-3_12_36-38-xen-5-2.1">kgraft-patch-3_12_36-38-xen-5-2.1</FullProductName>
    </Branch>
    <Relationship ProductReference="kgraft-patch-3_12_36-38-default-5-2.1" RelationType="Default Component Of" RelatesToProductReference="SUSE Linux Enterprise Live Patching 12">
      <FullProductName ProductID="SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1">kgraft-patch-3_12_36-38-default-5-2.1 as a component of SUSE Linux Enterprise Live Patching 12</FullProductName>
    </Relationship>
    <Relationship ProductReference="kgraft-patch-3_12_36-38-xen-5-2.1" RelationType="Default Component Of" RelatesToProductReference="SUSE Linux Enterprise Live Patching 12">
      <FullProductName ProductID="SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1">kgraft-patch-3_12_36-38-xen-5-2.1 as a component of SUSE Linux Enterprise Live Patching 12</FullProductName>
    </Relationship>
  </ProductTree>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="1">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack."</Note>
    </Notes>
    <CVE>CVE-2015-2925</CVE>
    <ProductStatuses>
      <Status Type="Fixed">
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1</ProductID>
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>6.9</BaseScoreV2>
        <VectorV2>AV:L/AC:M/Au:N/C:C/I:C/A:C</VectorV2>
      </ScoreSetV2>
    </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/2016/suse-su-20160384-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2015-2925.html</URL>
        <Description>CVE-2015-2925</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/926238</URL>
        <Description>SUSE Bug 926238</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/951625</URL>
        <Description>SUSE Bug 951625</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/951638</URL>
        <Description>SUSE Bug 951638</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/963994</URL>
        <Description>SUSE Bug 963994</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="2">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound.</Note>
    </Notes>
    <CVE>CVE-2015-6937</CVE>
    <ProductStatuses>
      <Status Type="Fixed">
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1</ProductID>
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>4.9</BaseScoreV2>
        <VectorV2>AV:L/AC:L/Au:N/C:N/I:N/A:C</VectorV2>
      </ScoreSetV2>
    </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/2016/suse-su-20160384-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2015-6937.html</URL>
        <Description>CVE-2015-6937</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1115893</URL>
        <Description>SUSE Bug 1115893</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/923755</URL>
        <Description>SUSE Bug 923755</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/945825</URL>
        <Description>SUSE Bug 945825</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/952384</URL>
        <Description>SUSE Bug 952384</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/953052</URL>
        <Description>SUSE Bug 953052</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/963994</URL>
        <Description>SUSE Bug 963994</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="3">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel through 4.2.6 allows local users to cause a denial of service (OOPS) via crafted keyctl commands.</Note>
    </Notes>
    <CVE>CVE-2015-7872</CVE>
    <ProductStatuses>
      <Status Type="Fixed">
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1</ProductID>
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>2.1</BaseScoreV2>
        <VectorV2>AV:L/AC:L/Au:N/C:N/I:N/A:P</VectorV2>
      </ScoreSetV2>
    </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/2016/suse-su-20160384-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2015-7872.html</URL>
        <Description>CVE-2015-7872</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/951440</URL>
        <Description>SUSE Bug 951440</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/951542</URL>
        <Description>SUSE Bug 951542</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/951638</URL>
        <Description>SUSE Bug 951638</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/958463</URL>
        <Description>SUSE Bug 958463</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/958601</URL>
        <Description>SUSE Bug 958601</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="4">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">Race condition in the rds_sendmsg function in net/rds/sendmsg.c in the Linux kernel before 4.3.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6937.</Note>
    </Notes>
    <CVE>CVE-2015-7990</CVE>
    <ProductStatuses>
      <Status Type="Fixed">
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1</ProductID>
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>low</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>5.9</BaseScoreV2>
        <VectorV2>AV:L/AC:M/Au:N/C:P/I:P/A:C</VectorV2>
      </ScoreSetV2>
    </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/2016/suse-su-20160384-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2015-7990.html</URL>
        <Description>CVE-2015-7990</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/945825</URL>
        <Description>SUSE Bug 945825</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/952384</URL>
        <Description>SUSE Bug 952384</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/953052</URL>
        <Description>SUSE Bug 953052</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="5">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c.</Note>
    </Notes>
    <CVE>CVE-2015-8539</CVE>
    <ProductStatuses>
      <Status Type="Fixed">
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1</ProductID>
        <ProductID>SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>important</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>6.9</BaseScoreV2>
        <VectorV2>AV:L/AC:M/Au:N/C:C/I:C/A:C</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>7.8</BaseScoreV3>
        <VectorV3>CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</VectorV3>
      </ScoreSetV3>
    </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/2016/suse-su-20160384-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2015-8539.html</URL>
        <Description>CVE-2015-8539</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1115893</URL>
        <Description>SUSE Bug 1115893</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/781018</URL>
        <Description>SUSE Bug 781018</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/958463</URL>
        <Description>SUSE Bug 958463</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/958601</URL>
        <Description>SUSE Bug 958601</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
</cvrfdoc>
