CVE-2020-10717 — LOW (3.3) — White Hats Nepal

Vulnerability Description

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.

CVSS Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Qemu	Qemu	>= 5.0, < 5.0.1

Related Weaknesses (CWE)

CWE-770

References

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
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

FAQ

What is CVE-2020-10717?

CVE-2020-10717 is a vulnerability with a CVSS score of 3.3 (LOW). 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 ...

How severe is CVE-2020-10717?

CVE-2020-10717 has been rated LOW with a CVSS base score of 3.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-10717?

Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu.