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CVE-2022-2211· NVD / CVE Program· CNA redhat

A vulnerability was found in libguestfs.

Noroxi assessment

Priority: Monitor (action score 26/100)

  • 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: 0.97% (FIRST EPSS); higher than 61.2% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: guestfs-tools (AlmaLinux:9) 1.48.2-5.el9; libguestfs (AlmaLinux:9) 1:1.48.4-2.el9.alma; libguestfs-appliance (AlmaLinux:9) 1:1.48.4-2.el9.alma.

Low priority for now. Upgrade to guestfs-tools (AlmaLinux:9) 1.48.2-5.el9; libguestfs (AlmaLinux:9) 1:1.48.4-2.el9.alma; libguestfs-appliance (AlmaLinux:9) 1:1.48.4-2.el9.alma 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 vulnerability was found in libguestfs. This issue occurs while calculating the greatest possible number of matching keys in the get_keys() function. This flaw leads to a denial of service, either by mistake or malicious actor.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Jul 12, 2022
Updated
Jun 17, 2026
EPSS
0.9% · 61th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.9%

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.

Follow CVE-2022-2211

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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
libguestfslibguestfs
redhatenterprise linux

Affected versions

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

  • libguestfs libguestfsall versions
  • redhat enterprise linux8.0
  • redhat enterprise linux9.0

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 libguestfs

    • noneaffected

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:9guestfs-toolsbefore 1.48.2-5.el91.48.2-5.el9
AlmaLinux:9libguestfsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-appliancebefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-bash-completionbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-develbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-gobjectbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-gobject-develbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-inspect-iconsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-man-pages-jabefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-man-pages-ukbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-rescuebefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-rsyncbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9libguestfs-xfsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9lua-guestfsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9ocaml-libguestfsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9ocaml-libguestfs-develbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9perl-Sys-Guestfsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9php-libguestfsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9python3-libguestfsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9ruby-libguestfsbefore 1:1.48.4-2.el9.alma1:1.48.4-2.el9.alma
AlmaLinux:9virt-v2vbefore 1:2.0.7-6.el91:2.0.7-6.el9
AlmaLinux:9virt-v2v-bash-completionbefore 1:2.0.7-6.el91:2.0.7-6.el9
AlmaLinux:9virt-v2v-man-pages-jabefore 1:2.0.7-6.el91:2.0.7-6.el9
AlmaLinux:9virt-v2v-man-pages-ukbefore 1:2.0.7-6.el91:2.0.7-6.el9

+96

Other highest-scoring records for the same primary product.

  • CVE-2013-4419The guestfish command in libguestfs 1.20.12, 1.22.7, and earlier, when using the --remote or --listen option, does not properly check the ow
    27Monitor
  • CVE-2013-2124Double free vulnerability in inspect-fs.c in LibguestFS 1.20.x before 1.20.7, 1.21.x, 1.22.0, and 1.23.0 allows remote attackers to cause a
    18Monitor
  • CVE-2010-3851libguestfs before 1.5.23, as used in virt-v2v, virt-inspector 1.5.3 and earlier, and possibly other products, when a raw-format disk image i
    18Monitor
  • CVE-2012-2690virt-edit in libguestfs before 1.18.0 does not preserve the permissions from the original file and saves the new file with world-readable pe
    8Monitor

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:libguestfs1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-appliance1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-bash-completion1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-devel1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-gobject1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-gobject-devel1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-inspect-icons1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-man-pages-ja1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-man-pages-uk1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-rescue1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-rsync1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
almalinux:libguestfs-xfs1:1.48.4-2.el9.alma · AlmaLinux:9Package registry (OSV)
debian:guestfs-tools1.48.2-1+deb12u1 · Debian:12Package registry (OSV)
debian:libguestfs1:1.46.2-1 · Debian:12Package registry (OSV)
opensuse:libguestfs1.44.2-150400.3.3.1 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:virt-v2v1.44.2-150400.3.3.1 · openSUSE:Leap 15.4Package registry (OSV)
red hat:hivex0:1.3.18-23.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:hivex-debuginfo0:1.3.18-23.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:hivex-debugsource0:1.3.18-23.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:hivex-devel0:1.3.18-23.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libguestfs1:1.44.0-9.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libguestfs-appliance1:1.44.0-9.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libguestfs-bash-completion1:1.44.0-9.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libguestfs-debuginfo1:1.44.0-9.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libguestfs-debugsource1:1.44.0-9.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libguestfs-devel1:1.44.0-9.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libguestfs-gfs21:1.44.0-9.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:SLOF0:20210217-1.module+el8.7.0+16689+53d59bc2 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
rocky linux:hivex0:1.3.18-23.module+el8.7.0+1084+97b81f61 · Rocky Linux:8Package registry (OSV)
rocky linux:libguestfs1:1.44.0-9.module+el8.7.0+1084+97b81f61.rocky · Rocky Linux:8Package registry (OSV)

+12

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.

No commit or PR link among the references.

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).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

CVSS vector

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

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
char buf[256];memcpy(buf, pkt->data, pkt->len);

Fixed

c
char buf[256];if (pkt->len > sizeof(buf)) {  return -EINVAL;}memcpy(buf, pkt->data, pkt->len);

Change log

  1. Fix✗ → ✓

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

References

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

All records