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Exim: Integer overflow in get_stdinput() (CVE-2020-28009)

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Exim: Integer overflow in get_stdinput() (CVE-2020-28009)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
05/06/2021
Created
05/14/2021
Added
05/13/2021
Modified
05/13/2021

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)

  • exim-upgrade-4_94_2

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