PT-2022-6994 · Exim+5 · Exim+5

Published 2022-06-06 · Updated 2026-06-10 · CVE-2023-42117

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Exim (affected versions not specified)

Description This issue allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this issue. 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 issue to execute code in the context of the current process.

Recommendations At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

RCE

DoS

Buffer Overflow

Command Injection

Weakness Enumeration

CWE-138

CWE-119

CWE-77

Related Identifiers

ALT-PU-2023-7644

BDU:2023-06274

CVE-2023-42117

DLA-3938-1

OPENSUSE-SU-2023:0303-1

OPENSUSE-SU-2023:0304-1

OPENSUSE-SU-2024:0007-1

OPENSUSE-SU-2024:13333-1

USN-6455-1

USN-6455-2

ZDI-23-1471

Affected Products

Alt Linux

Astra Linux

Exim

Linuxmint

Red Os

Ubuntu

References · 58

• 🔥 https://github.com/isotaka134/cve-2023-42115 · Exploit
• https://bdu.fstec.ru/vul/2023-06274 · Security Note
• https://ubuntu.com/security/CVE-2023-42117 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2024-1031SE47 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-23-1471 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-42117 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6455-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2023:0304-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-42117 · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-42119 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:0007-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:13333-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20220829SE16 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6455-2 · Vendor Advisory