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GLSA-202402-18 : Exim: Multiple Vulnerabilities

medium Nessus Plugin ID 190665

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Description

The remote host is affected by the vulnerability described in GLSA-202402-18 (Exim: Multiple Vulnerabilities)

 - Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not. (CVE-2023-51766)

 - NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability [epel-all] (CVE-2023-42114)

 - AUTH Out-Of-Bounds Write Remote Code Execution Vulnerability [epel-all] (CVE-2023-42115)

 - Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability (CVE-2023-42116, CVE-2023-42117)

 - dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability [epel-all] (CVE-2023-42119)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

All Exim users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=mail-mta/exim-4.97.1

See Also

https://security.gentoo.org/glsa/202402-18

https://bugs.gentoo.org/show_bug.cgi?id=914923

https://bugs.gentoo.org/show_bug.cgi?id=921520

Plugin Details

Severity: Medium

ID: 190665

File Name: gentoo_GLSA-202402-18.nasl

Version: 1.0

Type: local

Published: 2/18/2024

Updated: 2/18/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2023-51766

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:exim, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/18/2024

Vulnerability Publication Date: 10/2/2023

Reference Information

CVE: CVE-2023-42114, CVE-2023-42115, CVE-2023-42116, CVE-2023-42117, CVE-2023-42119, CVE-2023-51766