Buffer overflow in Azure Sphere - #VU47397
Published: October 7, 2020
Vulnerability identifier: #VU47397
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Azure Sphere
Azure Sphere
Detailed vulnerability description
The vulnerability allows a local attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the Pluton SIGN_WITH_TENANT_ATTESTATION_KEY functionality. A local attacker can use specially crafted ioctl calls, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.