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Amazon Linux AMI: CVE-2020-28009: Security patch for exim (ALAS-2022-1622)

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Amazon Linux AMI: CVE-2020-28009: Security patch for exim (ALAS-2022-1622)

Severity
7
CVSS
(AV:L/AC:L/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 allows Integer Overflow to Buffer Overflow because get_stdinput allows unbounded reads that are accompanied by unbounded increases in a certain size variable. NOTE: exploitation may be impractical because of the execution time needed to overflow (multiple days).

Solution(s)

  • amazon-linux-upgrade-exim

References

  • ALAS-2022-1622
  • CVE-2020-28009
  • USN-4934-1
  • USN-4934-2

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