Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2022-28734

Disclosure Date: July 20, 2023
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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’s conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2’s internal memory metadata.

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CVSS V3 Severity and Metrics
Base Score:
7.0 High
Impact Score:
4.7
Exploitability Score:
2.2
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

General Information

Vendors

  • gnu,
  • netapp

Products

  • active iq unified manager -,
  • grub2

Additional Info

Technical Analysis