CVE-2023-42117

2024-05-0303:15:50

Alpine Linux Development Team

security.alpinelinux.org

cve-2023-42117

exim

remote code execution

vulnerability

authentication

tcp port 25

memory corruption

zdi-can-17554

unix

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.4

Confidence

High

EPSS

0.001

Percentile

28.8%

JSON

Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17554.

OSVersionArchitecturePackageVersionFilename
Alpineedge-communitynoarchexim< 4.96.2-r0UNKNOWN
Alpine3.17-communitynoarchexim< 4.96.2-r0UNKNOWN
Alpine3.18-communitynoarchexim< 4.96.2-r0UNKNOWN
Alpine3.19-communitynoarchexim< 4.96.2-r0UNKNOWN
Alpine3.20-communitynoarchexim< 4.96.2-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-community	noarch	exim	< 4.96.2-r0	UNKNOWN
Alpine	3.17-community	noarch	exim	< 4.96.2-r0	UNKNOWN
Alpine	3.18-community	noarch	exim	< 4.96.2-r0	UNKNOWN
Alpine	3.19-community	noarch	exim	< 4.96.2-r0	UNKNOWN
Alpine	3.20-community	noarch	exim	< 4.96.2-r0	UNKNOWN