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             AUSCERT External Security Bulletin Redistribution

                               ESB-2022.2400
                     USN-5311-2: containerd regression
                                17 May 2022

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           containerd
Publisher:         Ubuntu
Operating System:  Ubuntu
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-23648  

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-5311-2

Comment: CVSS (Max):  7.5 CVE-2022-23648 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
         CVSS Source: NVD
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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USN-5311-2: containerd regression
16 May 2022

USN-5311-1 fix was reverted by mistake in containerd.
Releases

  o Ubuntu 21.10
  o Ubuntu 20.04 LTS

Packages

  o containerd - daemon to control runC

Details

USN-5311-1 released updates for containerd. Unfortunately, a subsequent update
reverted the fix for this CVE by mistake. This update corrects the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that containerd allows attackers to gain access to read-
only copies of arbitrary files and directories on the host via a specially-
crafted image configuration. An attacker could possibly use this issue to
obtain sensitive information.

Update instructions

The problem can be corrected by updating your system to the following package
versions:

Ubuntu 21.10

  o containerd - 1.5.9-0ubuntu1~21.10.3

Ubuntu 20.04

  o containerd - 1.5.9-0ubuntu1~20.04.4

In general, a standard system update will make all the necessary changes.

References

  o CVE-2022-23648

Related notices

  o USN-5311-1 : containerd, golang-github-containerd-containerd-dev

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