Vulnerability identifier: #VU60266
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-453
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
AhciBusDxe
Hardware solutions /
Drivers
Vendor:
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the SMM (System Management Mode) branch that registers a SWSMI handler does not sufficiently check or validate the allocated table variables EFI_BOOT_SERVICES and EFI_RUNTIME_SERVICES. A remote attacker can overwrite address location of the LocateHandleBuffer function and execute arbitrary code on the system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
External links
http://www.insyde.com/security-pledge
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.