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             AUSCERT External Security Bulletin Redistribution

              Security update for containerd, docke and runc
                                3 May 2021


        AusCERT Security Bulletin Summary

Product:           containerd
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Root Compromise                 -- Existing Account      
                   Denial of Service               -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
                   Unauthorised Access             -- Existing Account      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-21334 CVE-2021-21285 CVE-2021-21284
                   CVE-2019-19921 CVE-2019-16884 CVE-2019-5736
                   CVE-2018-16875 CVE-2018-16874 CVE-2018-16873

Reference:         ESB-2021.0891

Original Bulletin: 

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SUSE Security Update: Security update for containerd, docker, runc


Announcement ID:   SUSE-SU-2021:1458-1
Rating:            important
References:        #1028638 #1034053 #1048046 #1051429 #1053532 #1095817
                   #1118897 #1118898 #1118899 #1121967 #1131314 #1131553
                   #1149954 #1152308 #1160452 #1168481 #1175081 #1175821
                   #1181594 #1181641 #1181677 #1181730 #1181732 #1181749
                   #1182451 #1182476 #1182947 #1183024 #1183397 #1183855
                   #1184768 #1184962
Cross-References:  CVE-2018-16873 CVE-2018-16874 CVE-2018-16875 CVE-2019-16884
                   CVE-2019-19921 CVE-2019-5736 CVE-2021-21284 CVE-2021-21285
Affected Products:
                   SUSE Linux Enterprise Module for Containers 12

An update that solves 9 vulnerabilities and has 23 fixes is now available.


This update for containerd, docker, runc fixes the following issues:

  o Docker was updated to 20.10.6-ce * Switch version to use -ce suffix rather
    than _ce to avoid confusing other tools (bsc#1182476). * CVE-2021-21284:
    Fixed a potential privilege escalation when the root user in the remapped
    namespace has access to the host filesystem (bsc#1181732) * CVE-2021-21285:
    Fixed an issue where pulling a malformed Docker image manifest crashes the
    dockerd daemon (bsc#1181730).

  o runc was updated to v1.0.0~rc93 (bsc#1182451 and bsc#1184962). * Use the
    upstream runc package (bsc#1181641, bsc#1181677, bsc#1175821). * Fixed /dev
    /null is not available (bsc#1168481). * Fixed an issue where podman hangs
    when spawned by salt-minion process (bsc#1149954). * CVE-2019-19921: Fixed
    a race condition with shared mounts (bsc#1160452). * CVE-2019-16884: Fixed
    an LSM bypass via malicious Docker image that mount over a /proc directory
    (bsc#1152308). * CVE-2019-5736: Fixed potential write attacks to the host
    runc binary (bsc#1121967). * Fixed an issue where after a kernel-update
    docker doesn't run (bsc#1131314 bsc#1131553) * Ensure that we always
    include the version information in runc (bsc#1053532).

  o Switch to Go 1.13 for build. * CVE-2018-16873: Fixed a potential remote
    code execution (bsc#1118897). * CVE-2018-16874: Fixed a directory traversal
    in "go get" via curly braces in import paths (bsc#1118898). *
    CVE-2018-16875: Fixed a CPU denial of service (bsc#1118899). * Fixed an
    issue with building containers (bsc#1095817).

  o containerd was updated to v1.4.4 * CVE-2021-21334: Fixed a potential
    information leak through environment variables (bsc#1183397). * Handle a
    requirement from docker (bsc#1181594). * Install the containerd-shim*
    binaries and stop creating (bsc#1183024). * update version to the one
    required by docker (bsc#1034053)

  o Use -buildmode=pie for tests and binary build (bsc#1048046, bsc#1051429)
  o Cleanup seccomp builds similar (bsc#1028638).
  o Update to handle the docker-runc removal, and drop the -kubic flavour (bsc#
    1181677, bsc#1181749)

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  o SUSE Linux Enterprise Module for Containers 12:
    zypper in -t patch SUSE-SLE-Module-Containers-12-2021-1458=1

Package List:

  o SUSE Linux Enterprise Module for Containers 12 (ppc64le s390x x86_64):


  o https://www.suse.com/security/cve/CVE-2018-16873.html
  o https://www.suse.com/security/cve/CVE-2018-16874.html
  o https://www.suse.com/security/cve/CVE-2018-16875.html
  o https://www.suse.com/security/cve/CVE-2019-16884.html
  o https://www.suse.com/security/cve/CVE-2019-19921.html
  o https://www.suse.com/security/cve/CVE-2019-5736.html
  o https://www.suse.com/security/cve/CVE-2021-21284.html
  o https://www.suse.com/security/cve/CVE-2021-21285.html
  o https://www.suse.com/security/cve/CVE-2021-21334.html
  o https://bugzilla.suse.com/1028638
  o https://bugzilla.suse.com/1034053
  o https://bugzilla.suse.com/1048046
  o https://bugzilla.suse.com/1051429
  o https://bugzilla.suse.com/1053532
  o https://bugzilla.suse.com/1095817
  o https://bugzilla.suse.com/1118897
  o https://bugzilla.suse.com/1118898
  o https://bugzilla.suse.com/1118899
  o https://bugzilla.suse.com/1121967
  o https://bugzilla.suse.com/1131314
  o https://bugzilla.suse.com/1131553
  o https://bugzilla.suse.com/1149954
  o https://bugzilla.suse.com/1152308
  o https://bugzilla.suse.com/1160452
  o https://bugzilla.suse.com/1168481
  o https://bugzilla.suse.com/1175081
  o https://bugzilla.suse.com/1175821
  o https://bugzilla.suse.com/1181594
  o https://bugzilla.suse.com/1181641
  o https://bugzilla.suse.com/1181677
  o https://bugzilla.suse.com/1181730
  o https://bugzilla.suse.com/1181732
  o https://bugzilla.suse.com/1181749
  o https://bugzilla.suse.com/1182451
  o https://bugzilla.suse.com/1182476
  o https://bugzilla.suse.com/1182947
  o https://bugzilla.suse.com/1183024
  o https://bugzilla.suse.com/1183397
  o https://bugzilla.suse.com/1183855
  o https://bugzilla.suse.com/1184768
  o https://bugzilla.suse.com/1184962

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