Is CVE-2023-2861 in the CISA KEV catalog?

No. CVE-2023-2861 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-2861?

CVE-2023-2861 has a CVSS v3 base score of 6.0 (MEDIUM).

What is the EPSS score for CVE-2023-2861?

CVE-2023-2861 has an EPSS score of 0.38% (30th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-2861?

Upgrade qemu on debian 12 to 1:7.2+dfsg-7+deb12u1 or later. Fixes are available for 27 affected products.

CVE & CISA-KEV Catalog

CVE-2023-2861

MEDIUM

6.0

CVSS v3

NVD

Description

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.

CWE-284Improper Access Control

How to fix

Remediation Available

qemuDebian

Fixed in:1:7.2+dfsg-7+deb12u1CVE-2023-2861

Fixed in:1:8.0.3+dfsg-1CVE-2023-2861

kvmtoolUbuntu

Fixed in:0.20151104-1ubuntu0.1~esm1USN-8172-1

Fixed in:0.20170904-1ubuntu0.18.04.1~esm1USN-8172-1

Fixed in:0.20170904-1ubuntu0.20.04.1~esm1USN-8172-1

Fixed in:0.20170904-1.1ubuntu0.1~esm2USN-8172-1

qemuUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-block-extraUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-commonUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

qemu-guest-agentUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-keymapsUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

qemu-kvmUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-systemUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-aarch64Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

qemu-system-armUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-commonUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-system-dataUbuntu

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-system-guiUbuntu

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-system-mipsUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-miscUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-ppcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-s390xUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-sparcUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-x86Ubuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-x86-microvmUbuntu

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

qemu-system-x86-xenUbuntu

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Fixed in:1:4.2-3ubuntu6.28USN-6567-1

Fixed in:1:6.2+dfsg-2ubuntu6.16USN-6567-1

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-system-xenUbuntu

Fixed in:1:7.2+dfsg-5ubuntu2.4USN-6567-1

Fixed in:1:8.0.4+dfsg-1ubuntu3.23.10.2USN-6567-1

qemu-userUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-user-binfmtUbuntu

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-user-staticUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

qemu-utilsUbuntu

Fixed in:2.0.0+dfsg-2ubuntu1.47+esm6USN-8412-1

Fixed in:1:2.5+dfsg-5ubuntu10.51+esm4USN-8412-1

Fixed in:1:2.11+dfsg-1ubuntu7.42+esm5USN-8412-1

Fixed in:1:4.2-3ubuntu6.30+esm1USN-8412-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

0.38%probability of exploitation in 30 days

30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Vendor Advisory1

access.redhat.com

Other references3

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

Embed a live status badge for CVE-2023-2861

Markdown

[![CVE-2023-2861](https://tridentstack.com/cve/badge/CVE-2023-2861.svg)](https://tridentstack.com/cve/CVE-2023-2861)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-2861"><img src="https://tridentstack.com/cve/badge/CVE-2023-2861.svg" alt="CVE-2023-2861"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.