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Fencer Vulns
high 7.2

CVE-2023-27320 json

Sudo before 1.9.13p2 has a double free in the per-command chroot feature.

published 2023-02-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-31097

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Sudo before 1.9.13p2 has a double free in the per-command chroot feature.

Patch / fix

  • sudo_project sudo 1.9.13
  • sudo Debian 14, Debian 13, Debian 12 1.9.13p3-1

debian advisories DEBIAN-CVE-2023-27320

  • sudo Ubuntu 22.04 LTS 1.9.9-1ubuntu2.3

ubuntu advisories UBUNTU-CVE-2023-27320

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

  • sudo SLE Module for Basesystem 15 SP4, SLE Micro 5.4, SLE Micro 5.3 +2 more 1.9.9-150400.4.26.1

suse advisories SUSE-SU-2023:1665-1

  • sudo openSUSE Tumbleweed 1.9.13p3-2.1

opensuse advisories openSUSE-SU-2024:12795-1

  • sudo Alpine 3.17 1.9.12_p2-r1

alpine advisories ALPINE-CVE-2023-27320

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

  • sudo CBL-Mariner 2.0 1.9.13p3-1

azure linux advisories AZL-13784

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-2023-27320 updated cvss 6.4

sudo: double free with per-command chroot sudoers rules

  • Red Hat Enterprise Linux 6 sudo Red Hat Enterprise Linux 7 sudo Red Hat Enterprise Linux 8 sudo Red Hat Enterprise Linux 9 sudo, sudo-python-plugin
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

1.66% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • openwall.com https://www.openwall.com/lists/oss-security/2023/02/28/1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness

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.