Resource exhaustion in Qemu
CVE-2020-10717
A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version >= v5.0. Virtio-fs is meant to share a host file system directory with a guest via virtio-fs device. If the guest opens the maximum number of file descriptors under the shared directory, a denial of service may occur. This flaw allows a guest user/process to cause this denial of service on the host.
EPSS: 0.004 (32.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Qemu
- The Qemu Project — versions >= QEMU v5.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (vendor-advisory, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Patch, Mailing List, Third Party Advisory)
- secalert@redhat.com (Mailing List, Third Party Advisory)
- secalert@redhat.com (Patch, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-10717?
- CVE-2020-10717 is a low-severity vulnerability in Qemu, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 3.3/10. Published 2020-05-04.
- How severe is CVE-2020-10717?
- Low severity. CVSS v3 base score is 3.3 out of 10.
- Is CVE-2020-10717 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.