ArchLinuxASA-202002-13[ASA-202002-13] opensmtpd: arbitrary command execution
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.937 High
EPSS
Percentile
99.1%
Arch Linux Security Advisory ASA-202002-13
Severity: Critical
Date : 2020-02-29
CVE-ID : CVE-2020-8794
Package : opensmtpd
Type : arbitrary command execution
Remote : Yes
Link : https://security.archlinux.org/AVG-1105
Summary
The package opensmtpd before version 6.6.4p1-1 is vulnerable to
arbitrary command execution.
Resolution
Upgrade to 6.6.4p1-1.
pacman -Syu “opensmtpd>=6.6.4p1-1”
The problem has been fixed upstream in version 6.6.4p1.
Workaround
None.
Description
An out-of-bounds read vulnerability has been found in the client-side
code of OpenSMTPD <= 6.6.3p1, leading to arbitrary command execution
via a crafted SMTP transaction.
Impact
A remote attacker is able to execute arbitrary commands as root on the
affected host.
References
https://www.qualys.com/2020/02/24/cve-2020-8794/lpe-rce-opensmtpd-default-install.txt
https://security.archlinux.org/CVE-2020-8794
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.937 High
EPSS
Percentile
99.1%