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Debian dsa-6331 : keystone - security update

high Nessus Plugin ID 319887

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6331 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6331-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff June 08, 2026 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : keystone CVE ID : CVE-2026-42998 CVE-2026-42999 CVE-2026-43000 CVE-2026-43001 CVE-2026-44394

 Multiple vulnerabilities were discovered in Keystone, the OpenStack identity service, which may result in authorisation bypass, privilege escalation, user impersonation or incomplete termination of access privileges.

 For the oldstable distribution (bookworm), these problems have been fixed in version 2:22.0.2-0+deb12u3. This update also include two fixes already uploaded to be included in the final Bookworm point release (CVE-2026-40683, CVE-2026-33551).

 For the stable distribution (trixie), these problems have been fixed in version 2:27.0.0-3+deb13u4. This update also include two fixes already uploaded to be included in the next Trixie point release (CVE-2026-40683, CVE-2026-33551).

 We recommend that you upgrade your keystone packages.

 For the detailed security status of keystone please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/keystone

 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

 Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the keystone packages.

See Also

https://security-tracker.debian.org/tracker/source-package/keystone

https://security-tracker.debian.org/tracker/CVE-2026-33551

https://security-tracker.debian.org/tracker/CVE-2026-40683

https://security-tracker.debian.org/tracker/CVE-2026-42998

https://security-tracker.debian.org/tracker/CVE-2026-42999

https://security-tracker.debian.org/tracker/CVE-2026-43000

https://security-tracker.debian.org/tracker/CVE-2026-43001

https://security-tracker.debian.org/tracker/CVE-2026-44394

https://packages.debian.org/source/bookworm/keystone

https://packages.debian.org/source/trixie/keystone

Plugin Details

Severity: High

ID: 319887

File Name: debian_DSA-6331.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/8/2026

Updated: 6/8/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-43000

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:keystone-doc, p-cpe:/a:debian:debian_linux:python3-keystone, p-cpe:/a:debian:debian_linux:keystone, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/8/2026

Vulnerability Publication Date: 4/10/2026

Reference Information

CVE: CVE-2026-33551, CVE-2026-40683, CVE-2026-42998, CVE-2026-42999, CVE-2026-43000, CVE-2026-43001, CVE-2026-44394