NVD Vulnerability Detail

CVE-2016-2858

Summary	QEMU, when built with the Pseudo Random Number Generator (PRNG) back-end support, allows local guest OS users to cause a denial of service (process crash) via an entropy request, which triggers arbitrary stack based allocation and memory corruption.
Publication Date	April 8, 2016, 4:59 a.m.
Registration Date	Jan. 26, 2021, 2:09 p.m.
Last Update	Nov. 21, 2024, 11:48 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:qemu:qemu::::::::			2.5.1.1

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:15.10:::::::*
cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::

Configuration3		or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:8.0:::::::*

Related information, measures and tools

No	URL	タグ
1	http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956
2	http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956
3	http://www.openwall.com/lists/oss-security/2016/03/04/1	Mailing List Third Party Advisory
4	http://www.openwall.com/lists/oss-security/2016/03/04/1	Mailing List Third Party Advisory
5	http://www.openwall.com/lists/oss-security/2016/03/07/4	Mailing List Third Party Advisory
6	http://www.openwall.com/lists/oss-security/2016/03/07/4	Mailing List Third Party Advisory
7	http://www.securityfocus.com/bid/84134	Third Party Advisory VDB Entry
8	http://www.securityfocus.com/bid/84134	Third Party Advisory VDB Entry
9	http://www.ubuntu.com/usn/USN-2974-1	Third Party Advisory
10	http://www.ubuntu.com/usn/USN-2974-1	Third Party Advisory
11	https://bugzilla.redhat.com/show_bug.cgi?id=1314676	Issue Tracking Patch Third Party Advisory
12	https://bugzilla.redhat.com/show_bug.cgi?id=1314676	Issue Tracking Patch Third Party Advisory
13	https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html	Mailing List Third Party Advisory
14	https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html	Mailing List Third Party Advisory
15	https://security.gentoo.org/glsa/201604-01	Third Party Advisory
16	https://security.gentoo.org/glsa/201604-01	Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-331	エントロピー不足	https://cwe.mitre.org/data/definitions/331.html

JVN Vulnerability Information

QEMU におけるサービス運用妨害 (DoS) の脆弱性

Title	QEMU におけるサービス運用妨害 (DoS) の脆弱性
Summary	QEMU は、Pseudo Random Number Generator (PRNG) のバックエンドサポートでビルドされている場合、サービス運用妨害 (プロセスクラッシュ) 状態にされる脆弱性が存在します。
Possible impacts	ローカルのゲスト OS ユーザにより、entropy リクエストを介して、任意のスタックベース割り当ておよびメモリ破損を誘発されることで、サービス運用妨害 (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	March 3, 2016, midnight
Registration Date	April 12, 2016, 4:50 p.m.
Last Update	July 1, 2016, 5:40 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-2016-2858	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2858
National Vulnerability Database (NVD)
2	CVE-2016-2858	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2858

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-119	https://jvndb.jvn.jp/ja/cwe/CWE-119.html

ベンダー情報

No	Name	URL
QEMU
1	rng: add request queue support to rng-random	http://git.qemu.org/?p=qemu.git;a=commit;h=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956
Red Hat Bugzilla
2	Bug 1314676	https://bugzilla.redhat.com/show_bug.cgi?id=1314676

Change Log

No	Changed Details	Date of change
0	[2016年04月12日] 掲載 [2016年07月01日] 想定される影響：内容を更新	Feb. 17, 2018, 10:37 a.m.