SB2021091621 - SUSE update for Includes a kubernetes update to 1.18.20 including a backport for CVE-2021-25741

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Main Vulnerability Database SB2021091621

SB2021091621 - SUSE update for Includes a kubernetes update to 1.18.20 including a backport for CVE-2021-25741

Published: September 16, 2021

Security Bulletin ID SB2021091621
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Security restrictions bypass (CVE-ID: CVE-2021-25741)

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to application does not properly impose security restrictions by allowing hostPath-like access without use of the hostPath feature. A remote user can create a container with subpath volume mounts to access files and directories outside of the volume, including on the host filesystem.


2) Improper Validation of Array Index (CVE-ID: CVE-2021-3121)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to improper validation of index array in plugin/unmarshal/unmarshal.go. A remote attacker can pass specially crafted data to the application and bypass implemented security restrictions, possibly leading to remote code execution.


Remediation

Install update from vendor's website.

References