SUSE-SU-2021:3336-1: important: Security update for containerd, docker, runc

sle-security-updates at sle-security-updates at
Tue Oct 12 13:26:28 UTC 2021

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

Announcement ID:    SUSE-SU-2021:3336-1
Rating:             important
References:         #1102408 #1185405 #1187704 #1188282 #1191015 
                    #1191121 #1191334 #1191355 #1191434 
Cross-References:   CVE-2021-30465 CVE-2021-32760 CVE-2021-41089
                    CVE-2021-41091 CVE-2021-41092 CVE-2021-41103
CVSS scores:
                    CVE-2021-30465 (NVD) : 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
                    CVE-2021-30465 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-32760 (NVD) : 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
                    CVE-2021-32760 (SUSE): 3 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:L
                    CVE-2021-41089 (NVD) : 2.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
                    CVE-2021-41089 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-41091 (NVD) : 6.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
                    CVE-2021-41091 (SUSE): 6.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
                    CVE-2021-41092 (NVD) : 5.4 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N
                    CVE-2021-41092 (SUSE): 5.4 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N
                    CVE-2021-41103 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Containers 12

   An update that solves 6 vulnerabilities and has three fixes
   is now available.


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

   Docker was updated to 20.10.9-ce. (bsc#1191355)

   See upstream changelog in the packaged

     CVE-2021-41092 CVE-2021-41089 CVE-2021-41091 CVE-2021-41103

   container was updated to v1.4.11, to fix CVE-2021-41103. bsc#1191355

   - CVE-2021-32760: Fixed that a archive package allows chmod of file
     outside of unpack target directory (bsc#1188282)

   Update to runc v1.0.2. Upstream changelog is available from

   * Fixed a failure to set CPU quota period in some cases on cgroup v1.
   * Fixed the inability to start a container with the "adding seccomp filter
     rule for syscall ..." error, caused by redundant seccomp rules (i.e.
     those that has action equal to the default one). Such redundant rules
     are now skipped.
   * Made release builds reproducible from now on.
   * Fixed a rare debug log race in runc init, which can result in occasional
     harmful "failed to decode ..." errors from runc run or exec.
   * Fixed the check in cgroup v1 systemd manager if a container needs to be
     frozen before Set, and add a setting to skip such freeze
     unconditionally. The previous fix for that issue, done in runc 1.0.1,
     was not working.

   Update to runc v1.0.1. Upstream changelog is available from

   * Fixed occasional runc exec/run failure ("interrupted system call") on an
     Azure volume.
   * Fixed "unable to find groups ... token too long" error with /etc/group
     containing lines longer than 64K characters.
   * cgroup/systemd/v1: fix leaving cgroup frozen after Set if a parent
     cgroup is frozen. This is a regression in 1.0.0, not affecting runc
     itself but some
     of libcontainer users (e.g Kubernetes).
   * cgroupv2: bpf: Ignore inaccessible existing programs in case of
     permission error when handling replacement of existing bpf cgroup
     programs. This fixes a regression in 1.0.0, where some SELinux policies
     would block runc from being able to run entirely.
   * cgroup/systemd/v2: don't freeze cgroup on Set.
   * cgroup/systemd/v1: avoid unnecessary freeze on Set.
   - fix issues with runc under openSUSE MicroOS's SELinux policy. bsc#1187704

   Update to runc v1.0.0. Upstream changelog is available from

   ! The usage of relative paths for mountpoints will now produce a warning
   (such configurations are outside of the spec, and in future runc will
   produce an error when given such configurations).
   * cgroupv2: devices: rework the filter generation to produce consistent
     results with cgroupv1, and always clobber any existing eBPF program(s)
     to fix runc update and avoid leaking eBPF programs (resulting in errors
     when managing containers).
   * cgroupv2: correctly convert "number of IOs" statistics in a
     cgroupv1-compatible way.
   * cgroupv2: support larger than 32-bit IO statistics on 32-bit
   * cgroupv2: wait for freeze to finish before returning from the freezing
     code, optimize the method for checking whether a cgroup is frozen.
   * cgroups/systemd: fixed "retry on dbus disconnect" logic introduced in
   * cgroups/systemd: fixed returning "unit already exists" error from a
     systemd cgroup manager (regression in rc94)
   + cgroupv2: support SkipDevices with systemd driver
   + cgroup/systemd: return, not ignore, stop unit error from Destroy
   + Make "runc --version" output sane even when built with go get or
     otherwise outside of our build scripts.
   + cgroups: set SkipDevices during runc update (so we don't modify cgroups
     at all during runc update).
   + cgroup1: blkio: support BFQ weights.
   + cgroupv2: set per-device io weights if BFQ IO scheduler is available.

   Update to runc v1.0.0~rc95. Upstream changelog is available from

   This release of runc contains a fix for CVE-2021-30465, and users are
   strongly recommended to update (especially if you are providing
   semi-limited access to spawn containers to untrusted users). (bsc#1185405)

   Update to runc v1.0.0~rc94. Upstream changelog is available from

   Breaking Changes:
   * cgroupv1: kernel memory limits are now always ignored, as kmemcg has
     been effectively deprecated by the kernel. Users should make use of
     regular memory cgroup controls.

   Regression Fixes:

   * seccomp: fix 32-bit compilation errors
   * runc init: fix a hang caused by deadlock in seccomp/ebpf loading code
   * runc start: fix "chdir to cwd: permission denied" for some setups

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:

   - SUSE Linux Enterprise Module for Containers 12:

      zypper in -t patch SUSE-SLE-Module-Containers-12-2021-3336=1

Package List:

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



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