CVE-2016-8578 : The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Em

The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.

Published 2016-11-04 21:59:03

Updated 2025-04-12 10:46:41

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2016-8578

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Qemu » Qemu
Versions up to, including, (<=) 2.7.1
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Matching versions
Opensuse » Leap » Version: 42.2
cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-8578

EPSS FAQ

0.12%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 27 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-8578

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:N/I:N/A:P	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.0	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H	1.5	4.0	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High

References for CVE-2016-8578

http://www.openwall.com/lists/oss-security/2016/10/10/14

oss-security - Re: CVE request Qemu: 9pfs: potential NULL dereferencein 9pfs routines
Mailing List;Third Party Advisory
https://security.gentoo.org/glsa/201611-11

QEMU: Multiple vulnerabilities (GLSA 201611-11) — Gentoo security
Third Party Advisory

CVEs referencing this url
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07143.html

Re: [Qemu-devel] [PATCH] 9pfs: make unmarshal V9fsString more robust
Patch;Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/10/8

oss-security - CVE request Qemu: 9pfs: potential NULL dereferencein 9pfs routines
Mailing List;Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

[SECURITY] [DLA 1599-1] qemu security update
Mailing List;Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

openSUSE-SU-2016:3237-1: moderate: Security update for qemu
Mailing List;Third Party Advisory

CVEs referencing this url
http://www.securityfocus.com/bid/93474

QEMU CVE-2016-8578 Null Pointer Dereference Denial of Service Vulnerability
Third Party Advisory;VDB Entry

Jump to

Vulnerability Details : CVE-2016-8578

Products affected by CVE-2016-8578

Exploit prediction scoring system (EPSS) score for CVE-2016-8578

CVSS scores for CVE-2016-8578

References for CVE-2016-8578