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Amazon Linux AMI: CVE-2020-28024: Security patch for exim (ALAS-2022-1622)

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Amazon Linux AMI: CVE-2020-28024: Security patch for exim (ALAS-2022-1622)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
05/04/2021
Created
08/29/2022
Added
08/05/2022
Modified
08/05/2022

Description

Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF.

Solution(s)

  • amazon-linux-upgrade-exim

References

  • ALAS-2022-1622
  • CVE-2020-28024
  • USN-4934-1
  • USN-4934-2

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