CVE-2014-8106

qemu: cirrus: insufficient blit region checks

Severity Score

4.6

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Heap-based buffer overflow in the Cirrus VGA emulator (hw/display/cirrus_vga.c) in QEMU before 2.2.0 allows local guest users to execute arbitrary code via vectors related to blit regions. NOTE: this vulnerability exists because an incomplete fix for CVE-2007-1320.

Desbordamiento de buffer basado en memoria dinámica en el emulador Cirrus VGA (hw/display/cirrus_vga.c) en QEMU anterior a 2.2.0 permite a usuarios locales invotados ejecutar código arbitrario a través de vectores relacionados con las regiones blit. NOTA: esta vulnerabilidad existe debido a una solución incompleta para CVE-2007-1320.

It was found that the Cirrus blit region checks were insufficient. A privileged guest user could use this flaw to write outside of VRAM-allocated buffer boundaries in the host's QEMU process address space with attacker-provided data.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Adjacent

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-10-10 CVE Reserved
2014-12-04 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (20)

URL	Tag	Source
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bf25983345ca44aec3dd92c57142be45452bd38a	X_refsource_confirm
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d3532a0db02296e687711b8cdc7791924efccea0	X_refsource_confirm
http://lists.gnu.org/archive/html/qemu-devel/2014-12/msg00508.html	Mailing List
http://secunia.com/advisories/60364	Third Party Advisory
http://support.citrix.com/article/CTX200892	X_refsource_confirm
http://www.openwall.com/lists/oss-security/2014/12/04/8	Mailing List
http://www.securityfocus.com/bid/71477	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/99126	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2015-0349.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2015-0624.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2015-0643.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2015-0795.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2015-0867.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2015-0868.html	2023-02-13
http://rhn.redhat.com/errata/RHSA-2015-0891.html	2023-02-13
http://www.debian.org/security/2014/dsa-3087	2023-02-13
http://www.debian.org/security/2014/dsa-3088	2023-02-13
https://access.redhat.com/security/cve/CVE-2014-8106	2015-04-28
https://bugzilla.redhat.com/show_bug.cgi?id=1169454	2015-04-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				<= 2.1.2 Search vendor "Qemu" for product "Qemu" and version " <= 2.1.2"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.1.0 Search vendor "Qemu" for product "Qemu" and version "2.1.0"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.1.0 Search vendor "Qemu" for product "Qemu" and version "2.1.0"		rc0		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.1.0 Search vendor "Qemu" for product "Qemu" and version "2.1.0"		rc1		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.1.0 Search vendor "Qemu" for product "Qemu" and version "2.1.0"		rc2		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.1.0 Search vendor "Qemu" for product "Qemu" and version "2.1.0"		rc3		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.1.0 Search vendor "Qemu" for product "Qemu" and version "2.1.0"		rc5		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.1.1 Search vendor "Qemu" for product "Qemu" and version "2.1.1"		-		Affected