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Ubuntu: (Multiple Advisories) (CVE-2020-28009): Exim vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2020-28009): Exim vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
05/04/2021
Created
05/07/2021
Added
05/05/2021
Modified
03/24/2022

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)

  • ubuntu-upgrade-exim4-base
  • ubuntu-upgrade-exim4-daemon-heavy
  • ubuntu-upgrade-exim4-daemon-light

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