<?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 libtasn1</DocumentTitle>
  <DocumentType>SUSE Patch</DocumentType>
  <DocumentPublisher Type="Vendor">
    <ContactDetails>security@suse.de</ContactDetails>
    <IssuingAuthority>SUSE Security Team</IssuingAuthority>
  </DocumentPublisher>
  <DocumentTracking>
    <Identification>
      <ID>SUSE-SU-2022:3797-1</ID>
    </Identification>
    <Status>Final</Status>
    <Version>1</Version>
    <RevisionHistory>
      <Revision>
        <Number>1</Number>
        <Date>2022-10-27T12:34:13Z</Date>
        <Description>current</Description>
      </Revision>
    </RevisionHistory>
    <InitialReleaseDate>2022-10-27T12:34:13Z</InitialReleaseDate>
    <CurrentReleaseDate>2022-10-27T12:34:13Z</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 libtasn1</Note>
    <Note Title="Details" Type="General" Ordinal="2" xml:lang="en">This update for libtasn1 fixes the following issues:

Security issue fixed:

- CVE-2018-1000654: Fixed a denial of service in the asn1 parser (bsc#1105435).
- CVE-2017-6891: Added safety check to fix a stack overflow issue (bsc#1040621).
- CVE-2021-46848: Fixed off-by-one array size check that affects asn1_encode_simple_der (bsc#1204690)
</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-2022-3797,SUSE-SLE-SERVER-12-SP2-BCL-2022-3797</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/2022/suse-su-20223797-1/</URL>
      <Description>Link for SUSE-SU-2022:3797-1</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://lists.suse.com/pipermail/sle-security-updates/2022-October/012726.html</URL>
      <Description>E-Mail link for SUSE-SU-2022:3797-1</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/1040621</URL>
      <Description>SUSE Bug 1040621</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/1105435</URL>
      <Description>SUSE Bug 1105435</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/1204690</URL>
      <Description>SUSE Bug 1204690</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2017-6891/</URL>
      <Description>SUSE CVE CVE-2017-6891 page</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2018-1000654/</URL>
      <Description>SUSE CVE CVE-2018-1000654 page</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2021-46848/</URL>
      <Description>SUSE CVE CVE-2021-46848 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 Server 12 SP2-BCL">
      <Branch Type="Product Name" Name="SUSE Linux Enterprise Server 12 SP2-BCL">
        <FullProductName ProductID="SUSE Linux Enterprise Server 12 SP2-BCL" CPE="cpe:/o:suse:sles-bcl:12:sp2">SUSE Linux Enterprise Server 12 SP2-BCL</FullProductName>
      </Branch>
    </Branch>
    <Branch Type="Product Version" Name="libtasn1-3.7-13.7.1">
      <FullProductName ProductID="libtasn1-3.7-13.7.1">libtasn1-3.7-13.7.1</FullProductName>
    </Branch>
    <Branch Type="Product Version" Name="libtasn1-6-3.7-13.7.1">
      <FullProductName ProductID="libtasn1-6-3.7-13.7.1">libtasn1-6-3.7-13.7.1</FullProductName>
    </Branch>
    <Branch Type="Product Version" Name="libtasn1-6-32bit-3.7-13.7.1">
      <FullProductName ProductID="libtasn1-6-32bit-3.7-13.7.1">libtasn1-6-32bit-3.7-13.7.1</FullProductName>
    </Branch>
    <Branch Type="Product Version" Name="libtasn1-6-64bit-3.7-13.7.1">
      <FullProductName ProductID="libtasn1-6-64bit-3.7-13.7.1">libtasn1-6-64bit-3.7-13.7.1</FullProductName>
    </Branch>
    <Branch Type="Product Version" Name="libtasn1-devel-3.7-13.7.1">
      <FullProductName ProductID="libtasn1-devel-3.7-13.7.1">libtasn1-devel-3.7-13.7.1</FullProductName>
    </Branch>
    <Branch Type="Product Version" Name="libtasn1-devel-32bit-3.7-13.7.1">
      <FullProductName ProductID="libtasn1-devel-32bit-3.7-13.7.1">libtasn1-devel-32bit-3.7-13.7.1</FullProductName>
    </Branch>
    <Branch Type="Product Version" Name="libtasn1-devel-64bit-3.7-13.7.1">
      <FullProductName ProductID="libtasn1-devel-64bit-3.7-13.7.1">libtasn1-devel-64bit-3.7-13.7.1</FullProductName>
    </Branch>
    <Relationship ProductReference="libtasn1-3.7-13.7.1" RelationType="Default Component Of" RelatesToProductReference="SUSE Linux Enterprise Server 12 SP2-BCL">
      <FullProductName ProductID="SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-3.7-13.7.1">libtasn1-3.7-13.7.1 as a component of SUSE Linux Enterprise Server 12 SP2-BCL</FullProductName>
    </Relationship>
    <Relationship ProductReference="libtasn1-6-3.7-13.7.1" RelationType="Default Component Of" RelatesToProductReference="SUSE Linux Enterprise Server 12 SP2-BCL">
      <FullProductName ProductID="SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-3.7-13.7.1">libtasn1-6-3.7-13.7.1 as a component of SUSE Linux Enterprise Server 12 SP2-BCL</FullProductName>
    </Relationship>
    <Relationship ProductReference="libtasn1-6-32bit-3.7-13.7.1" RelationType="Default Component Of" RelatesToProductReference="SUSE Linux Enterprise Server 12 SP2-BCL">
      <FullProductName ProductID="SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-32bit-3.7-13.7.1">libtasn1-6-32bit-3.7-13.7.1 as a component of SUSE Linux Enterprise Server 12 SP2-BCL</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">Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.</Note>
    </Notes>
    <CVE>CVE-2017-6891</CVE>
    <ProductStatuses>
      <Status Type="Fixed">
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-3.7-13.7.1</ProductID>
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-3.7-13.7.1</ProductID>
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-32bit-3.7-13.7.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>3.3</BaseScoreV2>
        <VectorV2>AV:L/AC:M/Au:N/C:N/I:P/A:P</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>5.1</BaseScoreV3>
        <VectorV3>CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/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>
        <URL>https://www.suse.com/support/update/announcement/2022/suse-su-20223797-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2017-6891.html</URL>
        <Description>CVE-2017-6891</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1040621</URL>
        <Description>SUSE Bug 1040621</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1149679</URL>
        <Description>SUSE Bug 1149679</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">GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue in _asn1_expand_object_id(p_tree), after a long time, the program will be killed. This attack appears to be exploitable via parsing a crafted file.</Note>
    </Notes>
    <CVE>CVE-2018-1000654</CVE>
    <ProductStatuses>
      <Status Type="Fixed">
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-3.7-13.7.1</ProductID>
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-3.7-13.7.1</ProductID>
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-32bit-3.7-13.7.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>moderate</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>7.1</BaseScoreV2>
        <VectorV2>AV:N/AC:M/Au:N/C:N/I:N/A:C</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>6.2</BaseScoreV3>
        <VectorV3>CVSS:3.0/AV:L/AC:L/PR:N/UI:N/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://www.suse.com/support/update/announcement/2022/suse-su-20223797-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2018-1000654.html</URL>
        <Description>CVE-2018-1000654</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1105435</URL>
        <Description>SUSE Bug 1105435</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">GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.</Note>
    </Notes>
    <CVE>CVE-2021-46848</CVE>
    <ProductStatuses>
      <Status Type="Fixed">
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-3.7-13.7.1</ProductID>
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-3.7-13.7.1</ProductID>
        <ProductID>SUSE Linux Enterprise Server 12 SP2-BCL:libtasn1-6-32bit-3.7-13.7.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>critical</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV3>
        <BaseScoreV3>9.1</BaseScoreV3>
        <VectorV3>CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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://www.suse.com/support/update/announcement/2022/suse-su-20223797-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2021-46848.html</URL>
        <Description>CVE-2021-46848</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1204690</URL>
        <Description>SUSE Bug 1204690</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1205081</URL>
        <Description>SUSE Bug 1205081</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1205311</URL>
        <Description>SUSE Bug 1205311</Description>
      </Reference>
      <Reference>
        <URL>https://bugzilla.suse.com/1208025</URL>
        <Description>SUSE Bug 1208025</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
</cvrfdoc>
