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Fencer Vulns
high 7.8

CVE-2022-0358 json

A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation.

published 2022-08-29 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15514

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This could allow a malicious unprivileged user inside the guest to gain access to resources accessible to the root group, potentially escalating their privileges within the guest. A malicious local user in the host might also leverage this unexpected executable file created by the guest to escalate their privileges on the host system.

Patch / fix

  • qemu qemu 6.2.0-7
  • qemu Debian 14, Debian 13, Debian 12 1:7.0+dfsg-1

debian advisories DEBIAN-CVE-2022-0358

  • qemu Ubuntu 22.04 LTS 1:6.2+dfsg-2ubuntu6.2

ubuntu advisories UBUNTU-CVE-2022-0358

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • SLOF advanced virtualization 8.4 20200717-1.gite18ddad8.module+el8.4.0+8855+a9e237a9
  • hivex advanced virtualization 8.4 1.3.18-21.module+el8.4.0+11609+2eba841a
  • netcf advanced virtualization 8.5, advanced virtualization 8.4 0.2.8-12.module+el8.4.0+8855+a9e237a9
  • swtpm advanced virtualization 8.4 0.4.2-1.20201201git2df14e3.module+el8.4.0+9341+96cf2672
  • libnbd advanced virtualization 8.4 1.6.0-5.module+el8.4.0+14155+dec4a5c7
  • nbdkit advanced virtualization 8.4 1.24.0-1.module+el8.4.0+9341+96cf2672
  • libtpms advanced virtualization 8.4 0.7.4-4.20201106git2452a24dab.module+el8.4.0+10596+32ba7df3
  • libvirt advanced virtualization 8.4 7.0.0-14.6.module+el8.4.0+13801+378af433

red hat advisories RHSA-2022:0971RHSA-2022:0973RHSA-2022:0949RHSA-2022:0759RHSA-2022:0886

  • qemu SLE Module for Server Applications 15 SP3, SLE Module for Basesystem 15 SP3, SLE Micro 5.2 +1 more 5.2.0-150300.112.4

suse advisories SUSE-SU-2022:0930-2SUSE-SU-2022:0930-1

  • qemu openSUSE Tumbleweed 6.2.0-41.1
  • qemu openSUSE Leap 15.3 5.2.0-150300.112.4
  • qemu-testsuite openSUSE Leap 15.3 5.2.0-150300.112.7
  • qemu-linux-user openSUSE Leap 15.3 5.2.0-150300.112.3

opensuse advisories openSUSE-SU-2024:11907-1openSUSE-SU-2022:0930-1

  • netcf AlmaLinux 8 0.2.8-12.module_el8.6.0+2880+7d9e3703
  • sgabios AlmaLinux 8 1:0.20170427git-3.module_el8.6.0+2880+7d9e3703
  • libiscsi AlmaLinux 8 1.18.0-8.module_el8.6.0+2880+7d9e3703
  • qemu-img AlmaLinux 8 15:4.2.0-59.module_el8.5.0+2629+68d2f392.2
  • qemu-kvm AlmaLinux 8 15:4.2.0-59.module_el8.5.0+2629+68d2f392.2
  • netcf-libs AlmaLinux 8 0.2.8-12.module_el8.6.0+2880+7d9e3703
  • sgabios-bin AlmaLinux 8 1:0.20170427git-3.module_el8.6.0+2880+7d9e3703
  • libvirt-dbus AlmaLinux 8 1.3.0-2.module_el8.6.0+2880+7d9e3703

almalinux advisories ALSA-2022:0886

  • hivex Rocky Linux 8 1.3.18-21.module+el8.4.0+642+7e26f5e1
  • hivex Rocky Linux 8 1.3.18-21.module+el8.5.0+670+c4aa478c
  • netcf Rocky Linux 8 0.2.8-12.module+el8.7.0+1084+97b81f61
  • netcf Rocky Linux 8 0.2.8-12.module+el8.4.0+534+4680a14e
  • netcf Rocky Linux 8 0.2.8-12.module+el8.6.0+847+b490afdd
  • libnbd Rocky Linux 8 1.2.2-1.module+el8.4.0+534+4680a14e
  • nbdkit Rocky Linux 8 1.16.2-4.module+el8.4.0+534+4680a14e
  • libvirt Rocky Linux 8 6.0.0-37.1.module+el8.5.0+732+d204e9f7

rocky linux advisories RLSA-2022:0886

  • qemu CBL-Mariner 2.0 6.2.0-5
  • qemu Azure Linux 3.0 6.2.0-18

azure linux advisories AZL-10763AZL-35156

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-0358 updated cvss 7.0

QEMU: virtiofsd: potential privilege escalation via CVE-2018-13405

  • Red Hat Enterprise Linux 8 Advanced Virtualization qemu-img, qemu-kvm, qemu-kiwi, qemu-kvm-core, qemu-kvm-tests, qemu-kvm-common, +9 more
    affected: workaround, no fix available
  • Red Hat OpenStack Platform 10 (Newton) qemu-img-rhev, qemu-kvm-rhev, qemu-kvm-tools-rhev, qemu-kvm-common-rhev Red Hat OpenStack Platform 13 (Queens) qemu-img-rhev, qemu-kvm-rhev, qemu-kvm-tools-rhev, qemu-kvm-common-rhev
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Advanced Virtualization CodeReady Builder for RHEL 8.2.1 libnbd 1.2.2-1.module+el8.2.0+5644+32ac38d4, netcf 0.2.8-12.module+el8.2.0+4793+b09dd2fb, hivex 1.3.18-20.module+el8.2.0+5588+63a201c3, nbdfuse 1.2.2-1.module+el8.2.0+5644+32ac38d4, seabios 1.13.0-2.module+el8.2.1+7284+aa32a2c4, libiscsi 1.18.0-8.module+el8.2.0+4793+b09dd2fb, +45 more Red Hat Advanced Virtualization for RHEL 8.2.1 libnbd 1.2.2-1.module+el8.2.0+5644+32ac38d4, netcf 0.2.8-12.module+el8.2.0+4793+b09dd2fb, hivex 1.3.18-20.module+el8.2.0+5588+63a201c3, nbdfuse 1.2.2-1.module+el8.2.0+5644+32ac38d4, nbdkit 1.16.2-4.module+el8.2.1+6710+effcb1df, seabios 1.13.0-2.module+el8.2.1+7284+aa32a2c4, +96 more
    fixed: vendor fix RHSA-2022:0973
  • Red Hat Advanced Virtualization for RHEL 8.4.0.EUS netcf 0.2.8-12.module+el8.4.0+8855+a9e237a9, libnbd 1.6.0-5.module+el8.4.0+14155+dec4a5c7, nbdkit 1.24.0-1.module+el8.4.0+9341+96cf2672, hivex 1.3.18-21.module+el8.4.0+11609+2eba841a, nbdfuse 1.6.0-5.module+el8.4.0+14155+dec4a5c7, seabios 1.14.0-1.module+el8.4.0+8855+a9e237a9, +110 more
    fixed: vendor fix RHSA-2022:0971
  • Red Hat Advanced Virtualization for RHEL 8.5.0.Z netcf 0.2.8-12.module+el8.4.0+8855+a9e237a9, libnbd 1.6.0-5.module+el8.5.0+14157+bc4e6fb1, hivex 1.3.18-22.module+el8.5.0+12087+2208d04c, libvirt 7.6.0-6.module+el8.5.0+13051+7ddbe958, nbdfuse 1.6.0-5.module+el8.5.0+14157+bc4e6fb1, nbdkit 1.24.0-3.module+el8.5.0+13900+a08c0464, +110 more
    fixed: vendor fix RHSA-2022:0949
  • Red Hat CodeReady Linux Builder (v. 8) libnbd 1.2.2-1.module+el8.3.0+7353+9de0a3cc, netcf 0.2.8-12.module+el8.1.0+4066+0f1aadab, nbdfuse 1.2.2-1.module+el8.3.0+7353+9de0a3cc, hivex 1.3.18-21.module+el8.5.0+10709+b3edb581, seabios 1.13.0-2.module+el8.3.0+7353+9de0a3cc, libiscsi 1.18.0-8.module+el8.1.0+4066+0f1aadab, +39 more Red Hat Enterprise Linux AppStream (v. 8) libnbd 1.2.2-1.module+el8.3.0+7353+9de0a3cc, netcf 0.2.8-12.module+el8.1.0+4066+0f1aadab, nbdfuse 1.2.2-1.module+el8.3.0+7353+9de0a3cc, nbdkit 1.16.2-4.module+el8.3.0+6922+fd575af8, hivex 1.3.18-21.module+el8.5.0+10709+b3edb581, seabios 1.13.0-2.module+el8.3.0+7353+9de0a3cc, +88 more
    fixed: vendor fix RHSA-2022:0886
  • Red Hat Enterprise Linux AppStream EUS (v.8.4) libnbd 1.2.2-1.module+el8.3.0+7353+9de0a3cc, netcf 0.2.8-12.module+el8.1.0+4066+0f1aadab, nbdfuse 1.2.2-1.module+el8.3.0+7353+9de0a3cc, nbdkit 1.16.2-4.module+el8.3.0+6922+fd575af8, hivex 1.3.18-21.module+el8.4.0+10770+19c037f9, seabios 1.13.0-2.module+el8.3.0+7353+9de0a3cc, +88 more Red Hat Enterprise Linux CRB EUS (v.8.4) libnbd 1.2.2-1.module+el8.3.0+7353+9de0a3cc, netcf 0.2.8-12.module+el8.1.0+4066+0f1aadab, nbdfuse 1.2.2-1.module+el8.3.0+7353+9de0a3cc, hivex 1.3.18-21.module+el8.4.0+10770+19c037f9, seabios 1.13.0-2.module+el8.3.0+7353+9de0a3cc, libiscsi 1.18.0-8.module+el8.1.0+4066+0f1aadab, +39 more
    fixed: vendor fix RHSA-2022:0759
  • Red Hat Enterprise Linux 6 qemu-img, qemu-kvm, qemu-kvm-tools, qemu-guest-agent, qemu-guest-agent-win32 Red Hat Enterprise Linux 7 qemu-img, qemu-kvm, libcacard, qemu-img-ma, qemu-kvm-ma, qemu-kvm-tools, +5 more Red Hat Enterprise Linux 9 qemu-img, qemu-kvm, qemu-kvm-core, qemu-kvm-tools, qemu-pr-helper, qemu-kvm-common, +16 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • n/a QEMU/virtiofsd

Classification

Weakness
  • CWE-273 Improper Check for Dropped Privileges

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.