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Fencer Vulns
medium 6.5

CVE-2022-2211 json

A vulnerability was found in libguestfs.

published 2022-07-12 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-34494

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits
0
none known

Summary

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.

Patch / fix

  • libguestfs Debian 14, Debian 13, Debian 12 1:1.46.2-1
  • guestfs-tools Debian 12 1.48.2-1+deb12u1
  • guestfs-tools Debian 14, Debian 13 1.48.3-4

debian advisories DEBIAN-CVE-2022-2211

  • virt-v2v RHEL 9 1:2.0.7-6.el9
  • virt-v2v-man-pages-ja RHEL 9 1:2.0.7-6.el9
  • virt-v2v-man-pages-uk RHEL 9 1:2.0.7-6.el9
  • virt-v2v-bash-completion RHEL 9 1:2.0.7-6.el9
  • libguestfs RHEL 9 1:1.48.4-2.el9
  • lua-guestfs RHEL 9 1:1.48.4-2.el9
  • libguestfs-xfs RHEL 9 1:1.48.4-2.el9
  • php-libguestfs RHEL 9 1:1.48.4-2.el9

red hat advisories RHSA-2022:7968RHSA-2022:7958RHSA-2022:7959RHSA-2022:7472

  • virt-v2v SLE Module for Server Applications 15 SP4, openSUSE Leap 15.4 1.44.2-150400.3.3.1
  • libguestfs SLE Module for Server Applications 15 SP4, SLE Module for Development Tools 15 SP4, openSUSE Leap 15.4 1.44.2-150400.3.3.1

suse advisories SUSE-SU-2022:4308-1SUSE-SU-2022:2581-1

  • libguestfs openSUSE Tumbleweed 1.48.3-3.1

opensuse advisories openSUSE-SU-2024:12165-1

  • libguestfs AlmaLinux 9 1:1.48.4-2.el9.alma
  • lua-guestfs AlmaLinux 9 1:1.48.4-2.el9.alma
  • libguestfs-xfs AlmaLinux 9 1:1.48.4-2.el9.alma
  • php-libguestfs AlmaLinux 9 1:1.48.4-2.el9.alma
  • ruby-libguestfs AlmaLinux 9 1:1.48.4-2.el9.alma
  • libguestfs-rsync AlmaLinux 9 1:1.48.4-2.el9.alma
  • ocaml-libguestfs AlmaLinux 9 1:1.48.4-2.el9.alma
  • perl-Sys-Guestfs AlmaLinux 9 1:1.48.4-2.el9.alma

almalinux advisories ALSA-2022:7958ALSA-2022:7959ALSA-2022:7968

  • virt-v2v Rocky Linux 9 1:2.0.7-6.el9
  • guestfs-tools Rocky Linux 9 1.48.2-5.el9
  • libguestfs Rocky Linux 9 1:1.48.4-2.el9
  • hivex Rocky Linux 8 1.3.18-23.module+el8.7.0+1084+97b81f61
  • hivex Rocky Linux 8 1.3.18-23.module+el8.6.0+847+b490afdd
  • 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

rocky linux advisories RLSA-2022:7968RLSA-2022:7959RLSA-2022:7958RLSA-2022:7472

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-2022-2211 updated cvss 5.5

libguestfs: Buffer overflow in get_keys leads to DoS

  • Red Hat Enterprise Linux 6 guestfish, libguestfs, libguestfs-java, ruby-libguestfs, libguestfs-mount, libguestfs-tools, +5 more Red Hat Enterprise Linux 7 virt-dib, virt-v2v, libguestfs, lua-guestfs, libguestfs-xfs, libguestfs-gfs2, +15 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 virt-v2v, virt-v2v-man-pages-ja, virt-v2v-man-pages-uk, virt-v2v-bash-completion
    affected: no fix available
  • Red Hat Enterprise Linux 8 Advanced Virtualization virt-dib, virt-v2v, libguestfs, lua-guestfs, libguestfs-xfs, virt-p2v-maker, +18 more
    affected: no fix available “Fix deferred”
  • Red Hat OpenStack Platform 13 (Queens) libguestfs, python-libguestfs Red Hat Virtualization 4 virt-v2v, libguestfs, libguestfs-xfs, virt-p2v-maker, libguestfs-java, libguestfs-tools, +4 more
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 8) libnbd 1.6.0-5.module+el8.7.0+16689+53d59bc2, netcf 0.2.8-12.module+el8.7.0+16689+53d59bc2, hivex 1.3.18-23.module+el8.7.0+16689+53d59bc2, nbdfuse 1.6.0-5.module+el8.7.0+16689+53d59bc2, SLOF 20210217-1.module+el8.7.0+16689+53d59bc2, libvirt 8.0.0-10.module+el8.7.0+16689+53d59bc2, +38 more
    fixed: vendor fix RHSA-2022:7472
  • Red Hat CodeReady Linux Builder (v. 9) lua-guestfs 1.48.4-2.el9, php-libguestfs 1.48.4-2.el9, ruby-libguestfs 1.48.4-2.el9, ocaml-libguestfs 1.48.4-2.el9, libguestfs-gobject 1.48.4-2.el9, virt-v2v-man-pages-ja 2.0.7-6.el9, +3 more
    fixed: vendor fix RHSA-2022:7958
  • Red Hat Enterprise Linux AppStream (v. 8) libnbd 1.6.0-5.module+el8.7.0+16689+53d59bc2, netcf 0.2.8-12.module+el8.7.0+16689+53d59bc2, hivex 1.3.18-23.module+el8.7.0+16689+53d59bc2, nbdfuse 1.6.0-5.module+el8.7.0+16689+53d59bc2, nbdkit 1.24.0-4.module+el8.7.0+16689+53d59bc2, SLOF 20210217-1.module+el8.7.0+16689+53d59bc2, +104 more
    fixed: vendor fix RHSA-2022:7472
  • Red Hat Enterprise Linux AppStream (v. 9) virt-v2v 2.0.7-6.el9, libguestfs 1.48.4-2.el9, virt-win-reg 1.48.2-5.el9, guestfs-tools 1.48.2-5.el9, libguestfs-xfs 1.48.4-2.el9, libguestfs-rsync 1.48.4-2.el9, +7 more
    fixed: vendor fix RHSA-2022:7959

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

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

  • n/a libguestfs

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

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.