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CVE-2020-28020

Published: 4 May 2021

Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.

Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
exim4
Launchpad, Ubuntu, Debian
bionic
Released (4.90.1-1ubuntu1.8)
focal Not vulnerable
(4.93-13ubuntu1.1)
groovy Not vulnerable
(4.94-7ubuntu1)
hirsute Not vulnerable
(4.94-15ubuntu1)
impish Not vulnerable
(4.94-15ubuntu1)
jammy Not vulnerable
(4.94-15ubuntu1)
precise Does not exist

trusty
Released (4.82-3ubuntu2.4+esm3)
upstream
Released (4.92)
xenial
Released (4.86.2-2ubuntu2.6+esm1)
Patches:
upstream: https://github.com/Exim/exim/commit/56ac062a3ff94fc4e1bbfc2293119c079a4e980b