Exim Buffer Overflow in base64d() Lets Remote Users Execute Arbitrary Code
|
|
SecurityTracker Alert ID: 1040461 |
|
SecurityTracker URL: http://securitytracker.com/id/1040461
|
|
CVE Reference:
CVE-2018-6789
(Links to External Site)
|
Date: Mar 7 2018
|
Impact:
Execution of arbitrary code via network, User access via network
|
Fix Available: Yes Vendor Confirmed: Yes
|
Version(s): prior to 4.90.1
|
Description:
A vulnerability was reported in Exim. A remote user can execute arbitrary code on the target system.
A remote user can send specially crafted SMTP data to trigger a buffer overflow in base64d() and execute arbitrary code on the target system. The code will run with the privileges of the target service.
The original advisory is available at:
https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/
Meh Chang, DEVCORE research team, reported this vulnerability.
|
Impact:
A remote user can execute arbitrary code on the target system.
|
Solution:
The vendor has issued a fix (4.90.1).
The vendor advisory is available at:
https://exim.org/static/doc/security/CVE-2018-6789.txt
|
Vendor URL: exim.org/static/doc/security/CVE-2018-6789.txt (Links to External Site)
|
Cause:
Boundary error
|
Underlying OS: Linux (Any), UNIX (Any)
|
|
Message History:
None.
|
Source Message Contents
|
Subject: https://exim.org/static/doc/security/CVE-2018-6789.txt
|
|
|
