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Directory Traversal Affecting docker-bash-completion package, versions <20.10.6_ce-6.49.3

Severity

 Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.05% (18th percentile)

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  • Snyk ID SNYK-SLES151-DOCKERBASHCOMPLETION-2675129
  • published 14 Apr 2022
  • disclosed 11 Jun 2021
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Introduced: 11 Jun 2021

CVE-2021-21284 Open this link in a new tab
CWE-22 Open this link in a new tab

How to fix?

Upgrade SLES:15.1 docker-bash-completion to version 20.10.6_ce-6.49.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream docker-bash-completion package and not the docker-bash-completion package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using "--userns-remap", if the root user in the remapped namespace has access to the host filesystem they can modify files under "/var/lib/docker/<remapping>" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.

References

CVSS Scores

version 3.1
Expand this section

NVD

6.8 medium
  • Attack Vector (AV)
    Adjacent
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Changed
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    None
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SUSE

2.5 low
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Red Hat

6 medium