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KB5041851: Windows Server 2012 Security Update (August 2024)

critical Nessus Plugin ID 205454

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Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5041851. It is, therefore, affected by multiple vulnerabilities

 - A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism. (CVE-2022-2601)

 - A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise.
 This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the- Middle or compromise the boot server to be able to exploit this vulnerability successfully.
 (CVE-2023-40547)

 - When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded. (CVE-2022-3775)

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

Solution

Apply Security Update 5041851

See Also

https://support.microsoft.com/help/5041851

Plugin Details

Severity: Critical

ID: 205454

File Name: smb_nt_ms24_aug_5041851.nasl

Version: 1.5

Type: local

Agent: windows

Published: 8/13/2024

Updated: 11/6/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.5

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

CVSS Score Source: CVE-2024-38199

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows_server_2012

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/13/2024

Vulnerability Publication Date: 11/15/2022

CISA Known Exploited Vulnerability Due Dates: 9/3/2024

Reference Information

CVE: CVE-2022-2601, CVE-2022-3775, CVE-2023-40547, CVE-2024-29995, CVE-2024-37968, CVE-2024-38063, CVE-2024-38107, CVE-2024-38114, CVE-2024-38115, CVE-2024-38116, CVE-2024-38117, CVE-2024-38118, CVE-2024-38120, CVE-2024-38121, CVE-2024-38122, CVE-2024-38125, CVE-2024-38127, CVE-2024-38128, CVE-2024-38130, CVE-2024-38131, CVE-2024-38140, CVE-2024-38141, CVE-2024-38144, CVE-2024-38145, CVE-2024-38146, CVE-2024-38151, CVE-2024-38152, CVE-2024-38153, CVE-2024-38154, CVE-2024-38180, CVE-2024-38193, CVE-2024-38196, CVE-2024-38198, CVE-2024-38199, CVE-2024-38214

IAVA: 2024-A-0487, 2024-A-0499-S, 2024-A-0500-S

MSFT: MS24-5041851

MSKB: 5041851