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CVE-2019-16928

Published: 28 September 2019

Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.

Notes

AuthorNote
mdeslaur
4.92 and higher only

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
exim4
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
disco
Released (4.92-4ubuntu1.4)
trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)
Patches:
upstream: https://git.exim.org/exim.git/patch/478effbfd9c3cc5a627fc671d4bf94d13670d65f

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H