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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.53% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 44.7% of scored records. A rank, not a probability.
- NVD base score
- 8.2 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-01-28 19:13Z5 YR AGO
- Last updated
- 2024-08-04 17:02Z2 YR AGO
- Reserved
- 2020-12-17
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-269Improper Privilege ManagementClass
- Data version
- 5.1
- Document digest
- 690456472dee296023cfdf1898b1aec257398af1303b84f411fa97c91e04fa68
05 Affected products
06 References
- github.comhttps://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2c
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1915823
- www.openwall.comhttps://www.openwall.com/lists/oss-security/2021/01/22/1
- lists.gnu.orghttps://lists.gnu.org/archive/html/qemu-devel/2021-01/msg05461.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20210312-0002/
- security.gentoo.orgGLSA-202208-27https://security.gentoo.org/glsa/202208-27
07 Fixed in
AlmaLinux 8
- hivex Fixed in 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- hivex-devel Fixed in 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- libguestfs-winsupport Fixed
A version is affected if any line below covers it.
- Affected before 8.2-1.module_el8.3.0+2048+e7a0a3ea
- Affected before 8.2-1.module_el8.5.0+2608+72063365
- libiscsi Fixed
A version is affected if any line below covers it.
- Affected before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.18.0-8.module_el8.5.0+2608+72063365
- Affected before 1.18.0-8.module_el8.6.0+2880+7d9e3703
- libiscsi-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.18.0-8.module_el8.5.0+2608+72063365
- Affected before 1.18.0-8.module_el8.6.0+2880+7d9e3703
- libiscsi-utils Fixed
A version is affected if any line below covers it.
- Affected before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.18.0-8.module_el8.5.0+2608+72063365
- Affected before 1.18.0-8.module_el8.6.0+2880+7d9e3703
- libnbd Fixed
A version is affected if any line below covers it.
- Affected before 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.2.2-1.module_el8.5.0+2608+72063365
- libnbd-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.2.2-1.module_el8.5.0+2608+72063365
- libvirt Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-admin Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-bash-completion Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-client Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-config-network Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-config-nwfilter Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-interface Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-network Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-nodedev Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-nwfilter Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-secret Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-core Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-disk Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-iscsi Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-iscsi-direct Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-logical Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-mpath Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-rbd Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-scsi Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-dbus Fixed
A version is affected if any line below covers it.
- Affected before 1.3.0-2.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.3.0-2.module_el8.5.0+2608+72063365
- Affected before 1.3.0-2.module_el8.6.0+2880+7d9e3703
- libvirt-devel Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-docs Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-libs Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-nss Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- nbdfuse Fixed
A version is affected if any line below covers it.
- Affected before 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.2.2-1.module_el8.5.0+2608+72063365
- nbdkit Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
- nbdkit-bash-completion Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
- nbdkit-basic-filters Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
- nbdkit-basic-plugins Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
- nbdkit-curl-plugin Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
31 further packages in AlmaLinux 8 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- hivex Fixed in 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- hivex-devel Fixed in 1.3.18-20.module_el8.3.0+2048+e7a0a3ea
- libguestfs-winsupport Fixed
A version is affected if any line below covers it.
- Affected before 8.2-1.module_el8.3.0+2048+e7a0a3ea
- Affected before 8.2-1.module_el8.5.0+2608+72063365
- libiscsi Fixed
A version is affected if any line below covers it.
- Affected before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.18.0-8.module_el8.5.0+2608+72063365
- Affected before 1.18.0-8.module_el8.6.0+2880+7d9e3703
- libiscsi-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.18.0-8.module_el8.5.0+2608+72063365
- Affected before 1.18.0-8.module_el8.6.0+2880+7d9e3703
- libiscsi-utils Fixed
A version is affected if any line below covers it.
- Affected before 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.18.0-8.module_el8.5.0+2608+72063365
- Affected before 1.18.0-8.module_el8.6.0+2880+7d9e3703
- libnbd Fixed
A version is affected if any line below covers it.
- Affected before 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.2.2-1.module_el8.5.0+2608+72063365
- libnbd-devel Fixed
A version is affected if any line below covers it.
- Affected before 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.2.2-1.module_el8.5.0+2608+72063365
- libvirt Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-admin Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-bash-completion Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-client Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-config-network Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-config-nwfilter Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-interface Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-network Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-nodedev Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-nwfilter Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-secret Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-core Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-disk Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-iscsi Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-iscsi-direct Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-logical Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-mpath Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-rbd Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-daemon-driver-storage-scsi Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-dbus Fixed
A version is affected if any line below covers it.
- Affected before 1.3.0-2.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.3.0-2.module_el8.5.0+2608+72063365
- Affected before 1.3.0-2.module_el8.6.0+2880+7d9e3703
- libvirt-devel Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-docs Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-libs Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- libvirt-nss Fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3ea
- nbdfuse Fixed
A version is affected if any line below covers it.
- Affected before 1.2.2-1.module_el8.3.0+2048+e7a0a3ea
- Affected before 1.2.2-1.module_el8.5.0+2608+72063365
- nbdkit Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
- nbdkit-bash-completion Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
- nbdkit-basic-filters Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
- nbdkit-basic-plugins Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
- nbdkit-curl-plugin Fixed in 1.16.2-4.module_el8.5.0+2608+72063365
31 further packages in CloudLinux 8 not shown (first 40 listed).
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- qemu Fixed in 1:5.2+dfsg-5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 1:5.2+dfsg-5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 1:5.2+dfsg-5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.