Incorrect Permission Assignment for Critical Resource Affecting ctop package, versions <0.7.7-r13


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.2% (58th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-CTOP-6596993
  • published11 Apr 2024
  • disclosed19 Jul 2021

Introduced: 19 Jul 2021

CVE-2021-32760  (opens in a new tab)
CWE-732  (opens in a new tab)

How to fix?

Upgrade Chainguard ctop to version 0.7.7-r13 or higher.

NVD Description

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

containerd is a container runtime. A bug was found in containerd versions prior to 1.4.8 and 1.5.4 where pulling and extracting a specially-crafted container image can result in Unix file permission changes for existing files in the host’s filesystem. Changes to file permissions can deny access to the expected owner of the file, widen access to others, or set extended bits like setuid, setgid, and sticky. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in containerd 1.5.4 and 1.4.8. As a workaround, ensure that users only pull images from trusted sources. Linux security modules (LSMs) like SELinux and AppArmor can limit the files potentially affected by this bug through policies and profiles that prevent containerd from interacting with specific files.

CVSS Scores

version 3.1