Home/CVE/A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version
CVE

CVE-2020-10717

A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version

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.

LOW · CVSS 3.3 EPSS 0.00163
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

1
qemu>= 5.0 and < 5.0.1
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotentially Suspicious Usage Of Qemu
▣

Scoring & Timeline

3.3
LOW · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 May 2020 · 09:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
⚑

Vendor Advisories

2
suse-csafopenSUSE-SU-2024:11287-1
rhsaRHBA-2020:3172Moderate
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10717Issue TrackingPatchThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00141.htmlMailing ListThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00143.htmlMailing ListPatchThird Party Advisory
https://security.gentoo.org/glsa/202011-09Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/05/04/1Mailing ListPatchThird Party Advisory
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