Time-of-check Time-of-use (TOCTOU) Affecting skopeo package, versions <2:1.6.2-6.module+el8.8.0+17821+de1b53f1


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.07% (30th percentile)

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  • Snyk ID SNYK-CENTOS8-SKOPEO-5558936
  • published 16 Feb 2023
  • disclosed 15 Feb 2023

How to fix?

Upgrade Centos:8 skopeo to version 2:1.6.2-6.module+el8.8.0+17821+de1b53f1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream skopeo package and not the skopeo package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

A Time-of-check Time-of-use (TOCTOU) flaw was found in podman. This issue may allow a malicious user to replace a normal file in a volume with a symlink while exporting the volume, allowing for access to arbitrary files on the host file system.

CVSS Scores

version 3.1
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NVD

6.8 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
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Red Hat

6.8 medium
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SUSE

6 medium