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Amazon Linux AMI: CVE-2020-28026: Security patch for exim (ALAS-2022-1622)

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Amazon Linux AMI: CVE-2020-28026: Security patch for exim (ALAS-2022-1622)

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
05/04/2021
Created
08/29/2022
Added
08/05/2022
Modified
08/05/2022

Description

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN). Certain uses of ORCPT= can place a newline into a spool header file, and indirectly allow unauthenticated remote attackers to execute arbitrary commands as root.

Solution(s)

  • amazon-linux-upgrade-exim

References

  • ALAS-2022-1622
  • CVE-2020-28026
  • USN-4934-1
  • USN-4934-2

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