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  <DocumentTitle xml:lang="en">Security update for MozillaThunderbird</DocumentTitle>
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        <Date>2021-08-30T13:54:37Z</Date>
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    <Note Title="Topic" Type="Summary" Ordinal="1" xml:lang="en">Security update for MozillaThunderbird</Note>
    <Note Title="Details" Type="General" Ordinal="2" xml:lang="en">This update for MozillaThunderbird fixes the following issues:

Update to version 78.13 (MFSA 2021-35, bsc#1188891)

- CVE-2021-29986: Race condition when resolving DNS names could have led to memory corruption
- CVE-2021-29988: Memory corruption as a result of incorrect style treatment
- CVE-2021-29984: Incorrect instruction reordering during JIT optimization
- CVE-2021-29980: Uninitialized memory in a canvas object could have led to memory corruption
- CVE-2021-29985: Use-after-free media channels
- CVE-2021-29989: Memory safety bugs fixed in Thunderbird 78.13
</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-2021-2874,SUSE-SLE-Product-WE-15-SP2-2021-2874,SUSE-SLE-Product-WE-15-SP3-2021-2874</Note>
  </DocumentNotes>
  <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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      <Description>Link for SUSE-SU-2021:2874-1</Description>
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      <Description>SUSE Security Ratings</Description>
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      <URL>https://bugzilla.suse.com/1188891</URL>
      <Description>SUSE Bug 1188891</Description>
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      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird &lt; 78.13, Thunderbird &lt; 91, Firefox ESR &lt; 78.13, and Firefox &lt; 91.</Note>
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</Description>
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    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird &lt; 78.13, Thunderbird &lt; 91, Firefox ESR &lt; 78.13, and Firefox &lt; 91.</Note>
    </Notes>
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    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird &lt; 78.13, Thunderbird &lt; 91, Firefox ESR &lt; 78.13, and Firefox &lt; 91.</Note>
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    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.* This vulnerability affects Thunderbird &lt; 78.13, Thunderbird &lt; 91, Firefox ESR &lt; 78.13, and Firefox &lt; 91.</Note>
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        <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/2021/suse-su-20212874-1/</URL>
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    <References>
      <Reference>
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        <Description>CVE-2021-29986</Description>
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    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird &lt; 78.13, Thunderbird &lt; 91, Firefox ESR &lt; 78.13, and Firefox &lt; 91.</Note>
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        <Description xml:lang="en">To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
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    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird &lt; 78.13, Firefox ESR &lt; 78.13, and Firefox &lt; 91.</Note>
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        <ProductID>SUSE Linux Enterprise Workstation Extension 15 SP2:MozillaThunderbird-translations-other-78.13.0-8.36.1</ProductID>
        <ProductID>SUSE Linux Enterprise Workstation Extension 15 SP3:MozillaThunderbird-78.13.0-8.36.1</ProductID>
        <ProductID>SUSE Linux Enterprise Workstation Extension 15 SP3:MozillaThunderbird-translations-common-78.13.0-8.36.1</ProductID>
        <ProductID>SUSE Linux Enterprise Workstation Extension 15 SP3:MozillaThunderbird-translations-other-78.13.0-8.36.1</ProductID>
      </Status>
    </ProductStatuses>
    <Threats>
      <Threat Type="Impact">
        <Description>important</Description>
      </Threat>
    </Threats>
    <CVSSScoreSets>
      <ScoreSetV2>
        <BaseScoreV2>6.8</BaseScoreV2>
        <VectorV2>AV:N/AC:M/Au:N/C:P/I:P/A:P</VectorV2>
      </ScoreSetV2>
      <ScoreSetV3>
        <BaseScoreV3>7.5</BaseScoreV3>
        <VectorV3>CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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/2021/suse-su-20212874-1/</URL>
      </Remediation>
    </Remediations>
    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2021-29989.html</URL>
        <Description>CVE-2021-29989</Description>
      </Reference>
    </References>
  </vuln:Vulnerability>
</cvrfdoc>
