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Fencer Intel
high 7.5

CVE-2022-27650 json

A flaw was found in crun where containers were incorrectly started with non-empty default permissions.

published 4y ago modified 4mo ago also EUVD-2022-32150

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

A flaw was found in crun where containers were incorrectly started with non-empty default permissions. A vulnerability was found in Moby (Docker Engine) where containers were started incorrectly with non-empty inheritable Linux process capabilities. This flaw allows an attacker with access to programs with inheritable file capabilities to elevate those capabilities to the permitted set when execve(2) runs.

Patch / fix

  • crun_project crun 1.4.4
  • crun Debian 14, Debian 13, Debian 12 1.5+dfsg-1

debian advisories DEBIAN-CVE-2022-27650

  • crit RHEL 8 3.15-3.module+el8.6.0+14673+621cb8be
  • criu RHEL 8 3.15-3.module+el8.6.0+14673+621cb8be
  • crun RHEL 8 1.4.4-1.module+el8.6.0+14673+621cb8be
  • runc RHEL 8 1:1.0.3-2.module+el8.6.0+14673+621cb8be
  • udica RHEL 8 0.2.6-2.module+el8.6.0+14673+621cb8be
  • conmon RHEL 8 2:2.1.0-1.module+el8.6.0+14673+621cb8be
  • podman RHEL 8 2:4.0.2-6.module+el8.6.0+14673+621cb8be
  • skopeo RHEL 8 2:1.6.1-2.module+el8.6.0+14673+621cb8be

red hat advisories RHSA-2022:1762RHSA-2022:1793

  • crun openSUSE Tumbleweed 1.4.4-1.1

opensuse advisories openSUSE-SU-2024:11989-1

  • crit AlmaLinux 8 3.15-1.module_el8.6.0+2876+9ed4eae2
  • criu AlmaLinux 8 3.15-1.module_el8.6.0+2876+9ed4eae2
  • crun AlmaLinux 8 0.18-3.module_el8.6.0+2876+9ed4eae2
  • runc AlmaLinux 8 1.0.0-73.rc95.module_el8.6.0+2876+9ed4eae2
  • udica AlmaLinux 8 0.2.4-1.module_el8.6.0+2876+9ed4eae2
  • conmon AlmaLinux 8 2:2.0.26-1.module_el8.6.0+2876+9ed4eae2
  • podman AlmaLinux 8 3.0.1-8.module_el8.6.0+2876+9ed4eae2
  • skopeo AlmaLinux 8 1:1.2.4-1.module_el8.6.0+2876+9ed4eae2

almalinux advisories ALSA-2022:1793ALSA-2022:1762

  • criu Rocky Linux 8 3.15-1.module+el8.7.0+1076+9b1c11c1
  • criu Rocky Linux 8 3.15-1.module+el8.4.0+556+40122d08
  • criu Rocky Linux 8 3.15-1.module+el8.5.0+709+440d5e7e
  • criu Rocky Linux 8 3.15-1.module+el8.6.0+783+10209741
  • crun Rocky Linux 8 0.18-3.module+el8.7.0+1076+9b1c11c1
  • crun Rocky Linux 8 0.18-3.module+el8.6.0+783+10209741
  • runc Rocky Linux 8 1.0.0-73.rc95.module+el8.7.0+1076+9b1c11c1
  • runc Rocky Linux 8 1.0.0-73.rc95.module+el8.5.0+769+55ca48e8

rocky linux advisories RLSA-2022:1793RLSA-2022:1762

  • crun Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 1.4.4-r0

alpine advisories ALPINE-CVE-2022-27650

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2022-27650 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2022-27650 updated cvss 5.6

crun: Default inheritable capabilities for linux container should be empty

  • Red Hat OpenShift Container Platform 4 crun
    affected: workaround, no fix available “The entry point of a container can be modified to use a utility like capsh(1) to drop inheritable capabilities prior to the primary process starting.”
  • Red Hat Enterprise Linux AppStream (v. 8) crit 3.15-1.module+el8.6.0+14694+4f5132e0, crit 3.15-3.module+el8.6.0+14673+621cb8be, criu 3.15-1.module+el8.6.0+14694+4f5132e0, criu 3.15-3.module+el8.6.0+14673+621cb8be, crun 0.18-3.module+el8.6.0+14694+4f5132e0, crun 1.4.4-1.module+el8.6.0+14673+621cb8be, +54 more
    fixed: vendor fix “The entry point of a container can be modified to use a utility like capsh(1) to drop inheritable capabilities prior to the primary process starting.” RHSA-2022:1762
  • Red Hat Enterprise Linux 8 crun Red Hat Enterprise Linux 9 crun
    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

1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

  • n/a crun

Classification

Weakness
  • CWE-276 Incorrect Default Permissions

References

Sources

Fencer Intel 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.