FreeBSD : libspf2 -- Integer Underflow Remote Code Execution (915855ad-283d-4597-b01e-e0bf611db78b)

high Nessus Plugin ID 182560

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 915855ad-283d-4597-b01e-e0bf611db78b advisory.

- Trendmicro ZDI reports: Integer Underflow Remote Code Execution Vulnerability The specific flaw exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly validate user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account. (CVE-2023-42118)

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

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 182560

File Name: freebsd_pkg_915855ad283d4597b01ee0bf611db78b.nasl

Version: 1.1

Type: local

Family: FreeBSD Local Security Checks

Published: 10/4/2023

Updated: 5/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2023-42118

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:libspf2, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 10/4/2023

Vulnerability Publication Date: 10/4/2023

Reference Information

CVE: CVE-2023-42118

Detections

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