Security restrictions bypass in QEMU - CVE-2020-35517

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Main Vulnerability Database Vulnerabilities #VU50041

Security restrictions bypass in QEMU - CVE-2020-35517

Published: January 26, 2021


Vulnerability identifier: #VU50041
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-35517
CWE-ID: CWE-264
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
QEMU
Software vendor:
QEMU

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists within the virtio-fs shared file system daemon (virtiofsd). A remote privileged user of the guest operating system can create device special file in the shared directory and use it to r/w access host devices.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links