GNU grub2 code execution | CVE-2022-28733
NAME
GNU grub2 code execution
- Platforms Affected:
GNU GRUB2 - Risk Level:
8.1 - Exploitability:
Unproven - Consequences:
Gain Access
DESCRIPTION
GNU grub2 could allow a remote attacker to execute arbitrary code on the system, caused by an integer underflow in grub_net_recv_ip4_packets. By sending a specially-crafted IP packet, an attacker could exploit this vulnerability to cause code execution and/or secure boot circumvention.
CVSS 3.0 Information
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Access Vector: Network
- Access Complexity: High
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Remediation Level: Official Fix
MITIGATION
Refer to grub.git Web site for patch, upgrade or suggested workaround information. See References.
- Reference Link:
https://seclists.org/oss-sec/2022/q2/178 - Reference Link:
https://git.savannah.gnu.org/gitweb/?p=grub.git
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