Privilege escalation in Qemu
CVE-2020-35517
A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices.
Vulnerability class: Privilege Escalation
EPSS: 0.005 (41.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Qemu
- N/a Qemu — versions qemu 5.2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Exploit, Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Exploit, Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2020-35517?
- CVE-2020-35517 is a high-severity vulnerability in Qemu, classified under Improper Privilege Management. CVSS score: 8.2/10. Published 2021-01-28.
- How severe is CVE-2020-35517?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2020-35517 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.