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ubuntu Updates

2529
Classification
These posts contain security alerts, including digital loopholes, electronic attacks, technical updates, and they are classified base on the level of severity.

Critical

High

Medium

Low

Warning Date

Severity Level

Warning Number

Target Sector

31 January, 2021

● Critical

2021-2391

All

Description:

ubuntu has released security updates to address several vulnerabilities in the following products:

  • linux - Linux kernel
    • Ubuntu 18.04 LTS
    • Ubuntu 20.04 LTS
    • Ubuntu 20.10
    • Ubuntu 16.04 LTS
    • Ubuntu 14.04 ESM
  • Ceph
    • Ubuntu 20.10
    • Ubuntu 20.04 LTS
  • TCMU
    • Ubuntu 20.04 LTS
    • Ubuntu 20.10
  • XStream
    • Ubuntu 18.04 LTS
    • Ubuntu 20.04 LTS

Threats:

Attacker could exploit these vulnerabilities by doing the following:

  • Denial of service attack (DoS)
  • Execute arbitrary code
  • Sensitive information disclosure
  • Elevate privileges
  • Code injection

Best practice and Recommendations:

The CERT team encourages users to review ubuntu security advisory and apply the necessary updates:

Last updated at 31 January, 2021

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