Vulnerability CVE-2020-11869

Vulnerability Name:

CVE-2020-11869 (CCN-180710)

Assigned:

2020-04-24

Published:

2020-04-24

Updated:

2020-05-28

Summary:

An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.

CVSS v3 Severity:

3.3 Low (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)
2.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-190

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2020-11869

Source: MISC
Type: Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/04/24/2

Source: XF
Type: UNKNOWN
qemu-cve202011869-dos(180710)

Source: CCN
Type: qemu GIT Repository
ati-vga: Fix checks in ati_2d_blt() to avoid crash

Source: CONFIRM
Type: Mailing List, Patch, Vendor Advisory
https://git.qemu.org/?p=qemu.git;a=commit;h=ac2071c3791b67fc7af78b8ceb320c01ca1b5df7

Source: CCN
Type: oss-sec Mailing List, Fri, 24 Apr 2020 16:43:45 +0200
CVE-2020-11869 qemu: integer overflow in ati_2d_blt() in hw/display/ati-2d.c could lead to DoS

Source: UBUNTU
Type: UNKNOWN
USN-4372-1

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-11869

Vulnerable Configuration:

Configuration 1:

cpe:/a:qemu:qemu:*:*:*:*:*:*:*:* (Version >= 4.0.1 and <= 4.2.0)

Configuration CCN 1:

cpe:/a:qemu:qemu:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:618	P	Security update for python (Important) (in QA)	2022-10-06
oval:org.opensuse.security:def:202011869	V	CVE-2020-11869	2022-08-07
oval:org.opensuse.security:def:95148	P	qemu-6.2.0-150400.35.10 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:3187	P	qemu-tools-6.2.0-150400.35.10 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:3518	P	qemu-6.2.0-150400.35.10 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94817	P	qemu-tools-6.2.0-150400.35.10 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:296	P	qemu-tools-5.2.0-9.18 on GA media (Moderate)	2022-06-13
oval:org.opensuse.security:def:351	P	qemu-6.2.0-150400.35.10 on GA media (Moderate)	2022-06-10
oval:org.opensuse.security:def:94238	P	(Important)	2022-05-17
oval:org.opensuse.security:def:880	P	Security update for tar (Moderate)	2022-05-05
oval:org.opensuse.security:def:113318	P	qemu-6.1.0-32.1 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:1651	P	Security update for openssh (Important)	2021-12-22
oval:org.opensuse.security:def:69972	P	Security update for xorg-x11-server (Important)	2021-12-14
oval:org.opensuse.security:def:1225	P	Security update for java-1_8_0-openjdk (Important)	2021-11-23
oval:org.opensuse.security:def:106728	P	qemu-6.1.0-32.1 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:66907	P	Security update for openssl-1_1 (Important)	2021-08-24
oval:org.opensuse.security:def:100649	P	(Moderate)	2021-08-23
oval:org.opensuse.security:def:2279	P	qemu-5.2.0-9.18 on GA media (Moderate)	2021-08-10
oval:org.opensuse.security:def:101394	P	qemu-5.2.0-9.18 on GA media (Moderate)	2021-08-10
oval:org.opensuse.security:def:63368	P	qemu-5.2.0-9.18 on GA media (Moderate)	2021-08-10
oval:org.opensuse.security:def:101072	P	qemu-tools-5.2.0-9.18 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62314	P	qemu-tools-5.2.0-9.18 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:72055	P	qemu-tools-5.2.0-9.18 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:100951	P	libpango-1_0-0-1.44.7+11-1.25 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:70263	P	Security update for linuxptp (Important)	2021-07-27
oval:org.opensuse.security:def:69867	P	Security update for ucode-intel (Important)	2021-06-10
oval:org.opensuse.security:def:66815	P	Security update for the Linux Kernel (Important)	2021-06-08
oval:org.opensuse.security:def:73598	P	Security update for sudo (Important)	2021-04-20
oval:org.opensuse.security:def:93936	P	(Moderate)	2020-12-10
oval:org.opensuse.security:def:107315	P	qemu-tools-4.2.0-9.4 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:107617	P	qemu-4.2.0-9.4 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:71710	P	qemu-tools-4.2.0-9.4 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:63296	P	qemu-4.2.0-9.4 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:2207	P	qemu-4.2.0-9.4 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:61969	P	qemu-tools-4.2.0-9.4 on GA media (Moderate)	2020-12-03
oval:org.opensuse.security:def:50092	P	qemu on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:66524	P	libseccomp-devel on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73189	P	libnm0 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73307	P	qemu-tools on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:66616	P	qemu-tools on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:73480	P	FastCGI on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49267	P	libykcs11-1 on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:49321	P	qemu-tools on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:50038	P	subversion-server on GA media (Moderate)	2020-12-01
oval:org.opensuse.security:def:70158	P	crash on GA media (Moderate)	2020-12-01

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