VulnerabilityModified
CVE-2020-10717
If the guest opens the maximum number of file descriptors under the shared directory, a denial of service may occur.
MEDIUM 6.5EPSS 0.40%
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 0.40% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- qemu/qemu
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10717Issue Tracking, Patch, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00141.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00143.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202011-09Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/05/04/1Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10717Issue Tracking, Patch, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00141.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00143.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202011-09Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/05/04/1Mailing List, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.