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Exim 'dns_build_reverse()' Buffer Overflow

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Exim 'dns_build_reverse()' Buffer Overflow

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
01/14/2005
Created
07/25/2018
Added
01/25/2005
Modified
07/16/2012

Description

Certain versions of Exim ship with a flawed implementation of the 'dns_build_reverse()' function which allows a local attacker to overflow a buffer and execute arbitrary code under the privileges of the mailer. As a result, a local user may be able to read the e-mail belonging to other users on the system.

Solution(s)

  • exim-upgrade-4_43

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