<?xml version="1.0" encoding="utf-8"?>
  <cvrfdoc xmlns="http://www.icasi.org/CVRF/schema/cvrf/1.1" xmlns:cvrf="http://www.icasi.org/CVRF/schema/cvrf/1.1">
    <DocumentTitle>An update for flatpak is now available for HCE 2.0</DocumentTitle>
    <DocumentType>Security Advisory</DocumentType>
    <DocumentPublisher Type="Vendor">
      <ContactDetails>hws_security@huawei.com</ContactDetails>
      <IssuingAuthority>Huawei Cloud</IssuingAuthority>
    </DocumentPublisher>
    <DocumentTracking>
      <Identification>
        <ID>HCE2-SA-2024-0116</ID>
      </Identification>
      <Status>Final</Status>
      <Version>1.0</Version>
      <RevisionHistory>
        <Revision>
          <Number>1.0</Number>
          <Date>2024-05-25T06:44:23:00Z</Date>
          <Description>current version</Description>
        </Revision>
      </RevisionHistory>
      <InitialReleaseDate>2024-05-25T06:44:23:00Z</InitialReleaseDate>
      <CurrentReleaseDate>2024-05-25T06:44:23:00Z</CurrentReleaseDate>
      <Generator>
        <Engine>HCE SA Engine 1.0.0</Engine>
      </Generator>
    </DocumentTracking>
    <DocumentNotes>
      <Note Type="Summary" Ordinal="001">An update for flatpak is now available for HCE 2.0

HCE Security has rated this update as having a security impact of Moderate.A Common Vunlnerability Scoring System(CVSS)base score, which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.</Note>
      <Note Type="General" Ordinal="002">Security Fix(es):

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4 contain a vulnerability similar to CVE-2017-5226, but using the `TIOCLINUX` ioctl command instead of `TIOCSTI`. If a Flatpak app is run on a Linux virtual console such as `/dev/tty1`, it can copy text from the virtual console and paste it into the command buffer, from which the command might be run after the Flatpak app has exited. Ordinary graphical terminal emulators like xterm, gnome-terminal and Konsole are unaffected. This vulnerability is specific to the Linux virtual consoles `/dev/tty1`, `/dev/tty2` and so on. A patch is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, don't run Flatpak on a Linux virtual console. Flatpak is primarily designed to be used in a Wayland or X11 graphical environment. (CVE-2023-28100)

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak app with elevated permissions, they can hide those permissions from users of the `flatpak(1)` command-line interface by setting other permissions to crafted values that contain non-printable control characters such as `ESC`. A fix is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, use a GUI like GNOME Software rather than the command-line interface, or only install apps whose maintainers you trust. (CVE-2023-28101)
</Note>
      <Note Type="Legal Disclaimer" Ordinal="003">This document is provided on an &quot;AS IS&quot; basis and does not implyany kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no eventshall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by any means, is totally at your own risk. Huawei is entitled to amend or update this document from time to time.
The information and data embodied in this document and any attachment are strictly confidential information of Huawei and are supplied on the understanding that they will be held confidentially and not disclosed to third parties without the prior written consent of Huawei. Use all reasonable efforts to protect the confidentiality of information. In particular, do not directly or indirectly disclose, allow access to, transmit or transfer information to a third party without our prior written consent. Thank you for your co-operation. Receipt of this security advisory shall be deemed as your consent of the terms and conditions above.</Note>
    </DocumentNotes>
    <DocumentReferences/>
    <ProductTree xmlns="http://www.icasi.org/CVRF/schema/prod/1.1">
      <Branch Type="Vendor" Name="HuaweiCloud">
        <Branch Type="Product Name" Name="HCE">
          <Branch Type="Product Version" Name="2.0">
            <FullProductName ProductID="HCE 2.0" CPE="cpe:/o:huawei:HCE:2.0">Huawei Cloud EulerOS 2.0</FullProductName>
          </Branch>
        </Branch>
      </Branch>
      <Branch Type="Product Version" Name="flatpak">
        <FullProductName ProductID="flatpak" CPE="cpe:/o:huawei:HCE:2.0">flatpak</FullProductName>
      </Branch>
      <Relationship ProductReference="flatpak" RelationType="Default Component Of" RelatesToProductReference="HCE 2.0"/>
    </ProductTree>
    <Vulnerability xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1" Ordinal="001">
      <Notes>
        <Note Type="Details" Ordinal="001">This vulnerability can be exploited only when the following conditions are present:
None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-28100</Note>
      </Notes>
      <Involvements>
        <Involvement Party="Vendor" Status="Completed"/>
      </Involvements>
      <CVE>CVE-2023-28100</CVE>
      <ProductStatuses>
        <Status Type="Fixed">
          <ProductID>HCE 2.0:flatpak-1.10.2-7.hce2</ProductID>
        </Status>
      </ProductStatuses>
      <Threats>
        <Threat Type="Impact">
          <Description>For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-28100</Description>
        </Threat>
      </Threats>
      <CVSSScoreSets>
        <ScoreSet>
          <BaseScore>6.5</BaseScore>
          <Vector>CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H</Vector>
        </ScoreSet>
      </CVSSScoreSets>
      <Remediations/>
    </Vulnerability>
    <Vulnerability xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1" Ordinal="002">
      <Notes>
        <Note Type="Details" Ordinal="001">This vulnerability can be exploited only when the following conditions are present:
None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-28101</Note>
      </Notes>
      <Involvements>
        <Involvement Party="Vendor" Status="Completed"/>
      </Involvements>
      <CVE>CVE-2023-28101</CVE>
      <ProductStatuses>
        <Status Type="Fixed">
          <ProductID>HCE 2.0:flatpak-1.10.2-7.hce2</ProductID>
        </Status>
      </ProductStatuses>
      <Threats>
        <Threat Type="Impact">
          <Description>For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-28101</Description>
        </Threat>
      </Threats>
      <CVSSScoreSets>
        <ScoreSet>
          <BaseScore>6.2</BaseScore>
          <Vector>CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N</Vector>
        </ScoreSet>
      </CVSSScoreSets>
      <Remediations/>
    </Vulnerability>
  </cvrfdoc>
