NVD Vulnerability Detail

CVE-2016-8668

Summary	The rocker_io_writel function in hw/net/rocker/rocker.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging failure to limit DMA buffer size.
Publication Date	Nov. 5, 2016, 6:59 a.m.
Registration Date	Jan. 26, 2021, 2:19 p.m.
Last Update	Nov. 21, 2024, 11:59 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:qemu:qemu::::::::			2.7.1

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:42.2:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html	Mailing List Third Party Advisory
3	http://www.openwall.com/lists/oss-security/2016/10/14/8	Mailing List Patch Third Party Advisory
4	http://www.openwall.com/lists/oss-security/2016/10/14/8	Mailing List Patch Third Party Advisory
5	http://www.openwall.com/lists/oss-security/2016/10/15/9	Mailing List Third Party Advisory
6	http://www.openwall.com/lists/oss-security/2016/10/15/9	Mailing List Third Party Advisory
7	http://www.securityfocus.com/bid/93566	Third Party Advisory VDB Entry
8	http://www.securityfocus.com/bid/93566	Third Party Advisory VDB Entry
9	https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02501.html	Patch Third Party Advisory
10	https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02501.html	Patch Third Party Advisory
11	https://security.gentoo.org/glsa/201611-11	Third Party Advisory
12	https://security.gentoo.org/glsa/201611-11	Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-120	古典的バッファオーバーフロー	https://cwe.mitre.org/data/definitions/120.html

JVN Vulnerability Information

QEMU の hw/net/rocker/rocker.c の rocker_io_writel 関数におけるサービス運用妨害 (DoS) の脆弱性

Title	QEMU の hw/net/rocker/rocker.c の rocker_io_writel 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary	QEMU (別名 Quick Emulator) の hw/net/rocker/rocker.c の rocker_io_writel 関数には、サービス運用妨害 (境界外読み取りおよび QEMU プロセスクラッシュ) 状態にされる脆弱性が存在します。補足情報 : CWE による脆弱性タイプは、CWE-125: Out-of-bounds Read (境界外読み取り) と識別されています。 https://cwe.mitre.org/data/definitions/125.html
Possible impacts	ローカルのゲスト OS 管理者により、DMA バッファサイズ制限の失敗を利用されることで、サービス運用妨害 (境界外読み取りおよび QEMU プロセスクラッシュ) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Oct. 12, 2016, midnight
Registration Date	Nov. 8, 2016, 6:16 p.m.
Last Update	Nov. 8, 2016, 6:16 p.m.

Affected System

Fabrice Bellard

QEMU

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2016-8668	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8668
National Vulnerability Database (NVD)
2	CVE-2016-8668	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8668

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-Other	https://www.ipa.go.jp/security/vuln/CWE.html#CWEOther

ベンダー情報

No	Name	URL
Qemu-devel
1	[PATCH] net: rocker: set limit to DMA buffer size	https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02501.html

Change Log

No	Changed Details	Date of change
0	[2016年11月08日] 掲載	Feb. 17, 2018, 10:37 a.m.