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CBL Mariner 2.0 Security Update: grub2 (CVE-2022-28734)

high Nessus Plugin ID 201578

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of grub2 installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-28734 advisory.

 - Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2's internal memory metadata.
 (CVE-2022-28734)

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.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2022-28734

Plugin Details

Severity: High

ID: 201578

File Name: mariner_CVE-2022-28734.nasl

Version: 1.1

Type: local

Published: 7/3/2024

Updated: 7/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.7

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2022-28734

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:grub2-efi-binary, p-cpe:/a:microsoft:cbl-mariner:grub2-efi-binary-noprefix, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:grub2-efi-unsigned, p-cpe:/a:microsoft:cbl-mariner:grub2-rpm-macros, p-cpe:/a:microsoft:cbl-mariner:grub2-configuration, p-cpe:/a:microsoft:cbl-mariner:grub2, p-cpe:/a:microsoft:cbl-mariner:grub2-pc, p-cpe:/a:microsoft:cbl-mariner:grub2-efi

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/CBLMariner/release, Host/CBLMariner/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/1/2024

Vulnerability Publication Date: 6/16/2022

Reference Information

CVE: CVE-2022-28734