CVE-2022-28734

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

20/07/2023

Last modified:

16/01/2024

Description

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&#39;s conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2&#39;s internal memory metadata.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): Low
Availability (A): High

Base Score 3.x

7.00

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:gnu:grub2::::::::	2.00 (including)	2.06-3 (excluding)
cpe:2.3:a:netapp:active_iq_unified_manager:-:::::vmware_vsphere::

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-28734

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools