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Incorrect Default Permissions Affecting docker package, versions <20.10.17_ce-150000.166.1

Severity

 Recommended
low

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.05% (16th percentile)

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  • Snyk ID SNYK-SLES150-DOCKER-2946578
  • published 10 Jul 2022
  • disclosed 8 Jul 2022
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Introduced: 8 Jul 2022

CVE-2022-29162 Open this link in a new tab
CWE-276 Open this link in a new tab

How to fix?

Upgrade SLES:15.0 docker to version 20.10.17_ce-150000.166.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream docker package and not the docker package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where runc exec --cap created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set. This bug has been fixed in runc 1.1.2. This fix changes runc exec --cap behavior such that the additional capabilities granted to the process being executed (as specified via --cap arguments) do not include inheritable capabilities. In addition, runc spec is changed to not set any inheritable capabilities in the created example OCI spec (config.json) file.

References

CVSS Scores

version 3.1
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NVD

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

4 medium
Expand this section

Red Hat

5.6 medium