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CVE-2022-0358· NVD / CVE Program· CNA redhat

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

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.32% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: libiscsi (AlmaLinux:8) 1.18.0-8.module_el8.6.0+2880+7d9e3703; libiscsi-devel (AlmaLinux:8) 1.18.0-8.module_el8.6.0+2880+7d9e3703; libiscsi-utils (AlmaLinux:8) 1.18.0-8.module_el8.6.0+2880+7d9e3703.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to libiscsi (AlmaLinux:8) 1.18.0-8.module_el8.6.0+2880+7d9e3703; libiscsi-devel (AlmaLinux:8) 1.18.0-8.module_el8.6.0+2880+7d9e3703; libiscsi-utils (AlmaLinux:8) 1.18.0-8.module_el8.6.0+2880+7d9e3703 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Aug 29, 2022
Updated
Jun 17, 2026
EPSS
0.3% · 24th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
qemuqemu
redhatenterprise linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • qemu qemubefore 6.2.0-7
  • redhat enterprise linux8.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a QEMU/virtiofsd

    • Fixed in qemu v6.2.0-7affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8libiscsibefore 1.18.0-8.module_el8.6.0+2880+7d9e37031.18.0-8.module_el8.6.0+2880+7d9e3703
AlmaLinux:8libiscsi-develbefore 1.18.0-8.module_el8.6.0+2880+7d9e37031.18.0-8.module_el8.6.0+2880+7d9e3703
AlmaLinux:8libiscsi-utilsbefore 1.18.0-8.module_el8.6.0+2880+7d9e37031.18.0-8.module_el8.6.0+2880+7d9e3703
AlmaLinux:8libvirt-dbusbefore 1.3.0-2.module_el8.6.0+2880+7d9e37031.3.0-2.module_el8.6.0+2880+7d9e3703
AlmaLinux:8netcfbefore 0.2.8-12.module_el8.6.0+2880+7d9e37030.2.8-12.module_el8.6.0+2880+7d9e3703
AlmaLinux:8netcf-develbefore 0.2.8-12.module_el8.6.0+2880+7d9e37030.2.8-12.module_el8.6.0+2880+7d9e3703
AlmaLinux:8netcf-libsbefore 0.2.8-12.module_el8.6.0+2880+7d9e37030.2.8-12.module_el8.6.0+2880+7d9e3703
AlmaLinux:8qemu-guest-agentbefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-imgbefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-kvmbefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-kvm-block-curlbefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-kvm-block-glusterbefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-kvm-block-iscsibefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-kvm-block-rbdbefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-kvm-block-sshbefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-kvm-commonbefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8qemu-kvm-corebefore 15:4.2.0-59.module_el8.5.0+2629+68d2f392.215:4.2.0-59.module_el8.5.0+2629+68d2f392.2
AlmaLinux:8sgabiosbefore 1:0.20170427git-3.module_el8.6.0+2880+7d9e37031:0.20170427git-3.module_el8.6.0+2880+7d9e3703
AlmaLinux:8sgabios-binbefore 1:0.20170427git-3.module_el8.6.0+2880+7d9e37031:0.20170427git-3.module_el8.6.0+2880+7d9e3703
Debian:11qemubefore 1:5.2+dfsg-11+deb11u21:5.2+dfsg-11+deb11u2
Debian:12qemubefore 1:7.0+dfsg-11:7.0+dfsg-1
openSUSE:Leap 15.3qemubefore 5.2.0-150300.112.45.2.0-150300.112.4
openSUSE:Leap 15.3qemu-linux-userbefore 5.2.0-150300.112.35.2.0-150300.112.3
openSUSE:Leap 15.3qemu-testsuitebefore 5.2.0-150300.112.75.2.0-150300.112.7

+96

Same product

qemu: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-12928The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command injection, which allows the remote attacker to achieve
    46Plan
  • CVE-2015-8556Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1.
    44Plan
  • CVE-2017-15118A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an expor
    43Plan
  • CVE-2022-36648The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier, allows remote attackers
    41Plan
  • CVE-2017-16845hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.
    41Plan
  • CVE-2016-7161Heap-based buffer overflow in the .receive callback of xlnx.xps-ethernetlite in QEMU (aka Quick Emulator) allows attackers to execute arbitr
    41Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:libiscsi1.18.0-8.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8Package registry (OSV)
almalinux:libiscsi-devel1.18.0-8.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8Package registry (OSV)
almalinux:libiscsi-utils1.18.0-8.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8Package registry (OSV)
almalinux:libvirt-dbus1.3.0-2.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8Package registry (OSV)
almalinux:netcf0.2.8-12.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8Package registry (OSV)
almalinux:netcf-devel0.2.8-12.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8Package registry (OSV)
almalinux:netcf-libs0.2.8-12.module_el8.6.0+2880+7d9e3703 · AlmaLinux:8Package registry (OSV)
almalinux:qemu-guest-agent15:4.2.0-59.module_el8.5.0+2629+68d2f392.2 · AlmaLinux:8Package registry (OSV)
almalinux:qemu-img15:4.2.0-59.module_el8.5.0+2629+68d2f392.2 · AlmaLinux:8Package registry (OSV)
almalinux:qemu-kvm15:4.2.0-59.module_el8.5.0+2629+68d2f392.2 · AlmaLinux:8Package registry (OSV)
almalinux:qemu-kvm-block-curl15:4.2.0-59.module_el8.5.0+2629+68d2f392.2 · AlmaLinux:8Package registry (OSV)
almalinux:qemu-kvm-block-gluster15:4.2.0-59.module_el8.5.0+2629+68d2f392.2 · AlmaLinux:8Package registry (OSV)
debian:qemu1:7.0+dfsg-1 · Debian:12Package registry (OSV)
opensuse:qemu5.2.0-150300.112.4 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:qemu-linux-user5.2.0-150300.112.3 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:qemu-testsuite5.2.0-150300.112.7 · openSUSE:Leap 15.3Package registry (OSV)
red hat:hivex0:1.3.18-21.module+el8.4.0+10770+19c037f9 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:hivex-debuginfo0:1.3.18-21.module+el8.4.0+10770+19c037f9 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:hivex-debugsource0:1.3.18-21.module+el8.4.0+10770+19c037f9 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:hivex-devel0:1.3.18-21.module+el8.4.0+10770+19c037f9 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:libguestfs1:1.40.2-27.module+el8.4.0+9282+0bdec052 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:libguestfs-bash-completion1:1.40.2-27.module+el8.4.0+9282+0bdec052 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:libguestfs-benchmarking1:1.40.2-27.module+el8.4.0+9282+0bdec052 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:libguestfs-benchmarking-debuginfo1:1.40.2-27.module+el8.4.0+9282+0bdec052 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:libguestfs-debuginfo1:1.40.2-27.module+el8.4.0+9282+0bdec052 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:libguestfs-debugsource1:1.40.2-27.module+el8.4.0+9282+0bdec052 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:libguestfs-devel1:1.40.2-27.module+el8.4.0+9282+0bdec052 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
red hat:SLOF0:20191022-3.git899d9883.module+el8.3.0+6423+e4cb6418 · Red Hat:rhel_eus:8.4::appstreamPackage registry (OSV)
rocky linux:hivex0:1.3.18-21.module+el8.4.0+642+7e26f5e1 · Rocky Linux:8Package registry (OSV)
rocky linux:libguestfs1:1.40.2-28.module+el8.5.0+670+c4aa478c · Rocky Linux:8Package registry (OSV)

+11

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-273 · Improper Check for Dropped Privileges

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records