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  <DocumentTitle xml:lang="en">Security update for LibVNCServer</DocumentTitle>
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    <Note Title="Topic" Type="Summary" Ordinal="1" xml:lang="en">Security update for LibVNCServer</Note>
    <Note Title="Details" Type="General" Ordinal="2" xml:lang="en">This update for LibVNCServer fixes the following issues:

- security update
- added patches
  fix CVE-2018-21247 [bsc#1173874], uninitialized memory contents are vulnerable to Information leak
  + LibVNCServer-CVE-2018-21247.patch
  fix CVE-2019-20839 [bsc#1173875], buffer overflow in ConnectClientToUnixSock()
  + LibVNCServer-CVE-2019-20839.patch
  fix CVE-2019-20840 [bsc#1173876], unaligned accesses in hybiReadAndDecode can lead to denial of service
  + LibVNCServer-CVE-2019-20840.patch
  fix CVE-2020-14398 [bsc#1173880], improperly closed TCP connection causes an infinite loop in libvncclient/sockets.c
  + LibVNCServer-CVE-2020-14398.patch
  fix CVE-2020-14397 [bsc#1173700], NULL pointer dereference in libvncserver/rfbregion.c
  + LibVNCServer-CVE-2020-14397.patch
  fix CVE-2020-14399 [bsc#1173743], Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c.
  + LibVNCServer-CVE-2020-14399.patch
  fix CVE-2020-14400 [bsc#1173691], Byte-aligned data is accessed through uint16_t pointers in libvncserver/translate.c.
  + LibVNCServer-CVE-2020-14400.patch
  fix CVE-2020-14401 [bsc#1173694], potential integer overflows in libvncserver/scale.c
  + LibVNCServer-CVE-2020-14401.patch
  fix CVE-2020-14402 [bsc#1173701], out-of-bounds access via encodings.
  + LibVNCServer-CVE-2020-14402,14403,14404.patch
  fix CVE-2017-18922 [bsc#1173477], preauth buffer overwrite

This update was imported from the SUSE:SLE-15:Update update project.</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">openSUSE-2020-988</Note>
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    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>5</BaseScoreV2>
        <VectorV2>AV:N/AC:L/Au:N/C:N/I:N/A:P</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>6.5</BaseScoreV3>
        <VectorV3>CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RH2MWYCQ3Y7WV6I2GEEBEI2J57NGY36J/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2020-14398.html</URL>
        <Description>CVE-2020-14398</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173477</URL>
        <Description>SUSE Bug 1173477</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173880</URL>
        <Description>SUSE Bug 1173880</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="7">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">** DISPUTED ** An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32_t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed."</Note>
    </Notes>
    <CVE>CVE-2020-14399</CVE>
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    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>5</BaseScoreV2>
        <VectorV2>AV:N/AC:L/Au:N/C:N/I:N/A:P</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>4.3</BaseScoreV3>
        <VectorV3>CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L</VectorV3>
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    <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://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RH2MWYCQ3Y7WV6I2GEEBEI2J57NGY36J/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2020-14399.html</URL>
        <Description>CVE-2020-14399</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173477</URL>
        <Description>SUSE Bug 1173477</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173743</URL>
        <Description>SUSE Bug 1173743</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="8">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">** DISPUTED ** An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint16_t pointers in libvncserver/translate.c. NOTE: Third parties do not consider this to be a vulnerability as there is no known path of exploitation or cross of a trust boundary.</Note>
    </Notes>
    <CVE>CVE-2020-14400</CVE>
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    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>5</BaseScoreV2>
        <VectorV2>AV:N/AC:L/Au:N/C:N/I:N/A:P</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>4.3</BaseScoreV3>
        <VectorV3>CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L</VectorV3>
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    </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://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RH2MWYCQ3Y7WV6I2GEEBEI2J57NGY36J/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2020-14400.html</URL>
        <Description>CVE-2020-14400</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173477</URL>
        <Description>SUSE Bug 1173477</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173691</URL>
        <Description>SUSE Bug 1173691</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="9">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">An issue was discovered in LibVNCServer before 0.9.13. libvncserver/scale.c has a pixel_value integer overflow.</Note>
    </Notes>
    <CVE>CVE-2020-14401</CVE>
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    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>6.4</BaseScoreV2>
        <VectorV2>AV:N/AC:L/Au:N/C:N/I:P/A:P</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>6.5</BaseScoreV3>
        <VectorV3>CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L</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://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RH2MWYCQ3Y7WV6I2GEEBEI2J57NGY36J/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2020-14401.html</URL>
        <Description>CVE-2020-14401</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173477</URL>
        <Description>SUSE Bug 1173477</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173694</URL>
        <Description>SUSE Bug 1173694</Description>
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    </References>
  </vuln:Vulnerability>
  <vuln:Vulnerability xmlns="http://docs.oasis-open.org/csaf/ns/csaf-cvrf/v1.2/vuln" Ordinal="10">
    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">An issue was discovered in LibVNCServer before 0.9.13. libvncserver/corre.c allows out-of-bounds access via encodings.</Note>
    </Notes>
    <CVE>CVE-2020-14402</CVE>
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    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>5.5</BaseScoreV2>
        <VectorV2>AV:N/AC:L/Au:S/C:P/I:N/A:P</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>6.3</BaseScoreV3>
        <VectorV3>CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L</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>
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      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2020-14402.html</URL>
        <Description>CVE-2020-14402</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173477</URL>
        <Description>SUSE Bug 1173477</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1173701</URL>
        <Description>SUSE Bug 1173701</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
</cvrfdoc>
