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CVE-2020-28025

Published: 4 May 2021

Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between sig->bodyhash.len and b->bh.len; thus, a crafted DKIM-Signature header might lead to a leak of sensitive information from process memory.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
exim4
Launchpad, Ubuntu, Debian
bionic
Released (4.90.1-1ubuntu1.8)
focal
Released (4.93-13ubuntu1.5)
groovy
Released (4.94-7ubuntu1.2)
hirsute
Released (4.94-15ubuntu1.2)
impish
Released (4.94-15ubuntu1.2)
jammy
Released (4.94-15ubuntu1.2)
precise Does not exist

trusty
Released (4.82-3ubuntu2.4+esm3)
upstream Needs triage

xenial
Released (4.86.2-2ubuntu2.6+esm1)