Debian dsa-5983 : qemu-block-extra - security update

medium Nessus Plugin ID 254417

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-5983 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-5983-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff August 22, 2025 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : qemu CVE ID : CVE-2025-54566 CVE-2025-54567

This update removes the usage of the C (Credential) flag for the binfmt_misc registration within the qemu-user package, as it allowed for privilege escalation when running a suid/sgid binary under qemu-user.
This means suid/sgid foreign-architecture binaries are not running with elevated privileges under qemu-user anymore. If you relied on this behavior of qemu-user in the past (running suid/sgid foreign-arch binaries), this will require changes to your deployment.

In Bookworm the affected packages are qemu-user-static (and qemu-user-binfmt) instead of qemu-user.

Additionally, two security issues were fixed the in SR-IOV support of QEMU system emulation.

For the oldstable distribution (bookworm), these problems have been fixed in version 1:7.2+dfsg-7+deb12u15.

For the stable distribution (trixie), these problems have been fixed in version 1:10.0.2+ds-2+deb13u1.

We recommend that you upgrade your qemu packages.

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

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 qemu-block-extra packages.

Plugin Details

Severity: Medium

ID: 254417

File Name: debian_DSA-5983.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/25/2025

Updated: 8/25/2025

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Low

Base Score: 3.2

Temporal Score: 2.4

Vector: CVSS2#AV:A/AC:H/Au:N/C:N/I:P/A:P

CVSS Score Source: CVE-2025-54567

CVSS v3

Risk Factor: Medium

Base Score: 4.2

Temporal Score: 3.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:qemu-utils, p-cpe:/a:debian:debian_linux:qemu-system-x86, p-cpe:/a:debian:debian_linux:qemu-block-extra, p-cpe:/a:debian:debian_linux:qemu-system-s390x, p-cpe:/a:debian:debian_linux:qemu-system-xen, p-cpe:/a:debian:debian_linux:qemu-system-gui, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:qemu-system-data, p-cpe:/a:debian:debian_linux:qemu-user, p-cpe:/a:debian:debian_linux:qemu-system-modules-opengl, p-cpe:/a:debian:debian_linux:qemu-system-common, p-cpe:/a:debian:debian_linux:qemu-system-misc, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:qemu-system-riscv, p-cpe:/a:debian:debian_linux:qemu-system-mips, p-cpe:/a:debian:debian_linux:qemu-user-binfmt, p-cpe:/a:debian:debian_linux:qemu-system-modules-spice, p-cpe:/a:debian:debian_linux:qemu-user-static, p-cpe:/a:debian:debian_linux:qemu-guest-agent, p-cpe:/a:debian:debian_linux:qemu-system-sparc, p-cpe:/a:debian:debian_linux:qemu-system-arm, p-cpe:/a:debian:debian_linux:qemu-system, p-cpe:/a:debian:debian_linux:qemu-system-ppc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/22/2025

Vulnerability Publication Date: 7/25/2025

Reference Information

CVE: CVE-2025-54566, CVE-2025-54567

Detections

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