Improper Verification of Cryptographic Signature in QEMU - CVE-2020-10702
Published: May 25, 2020
Vulnerability identifier: #VU28198
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-10702
CWE-ID: CWE-347
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows a local user to bypass authentication.
The vulnerability exists due to usage of a weak signature algorithm within the /arm/pauth_helper.c in Pointer Authentication support for ARM. A local user can bypass PAuth and gain unauthorized access to resources on the system.
How to mitigate CVE-2020-10702
Install updates from vendor's website.