NVD Vulnerability Detail

CVE-2015-8743

Summary	QEMU (aka Quick Emulator) built with the NE2000 device emulation support is vulnerable to an OOB r/w access issue. It could occur while performing 'ioport' r/w operations. A privileged (CAP_SYS_RAWIO) user/process could use this flaw to leak or corrupt QEMU memory bytes.
Publication Date	Dec. 30, 2016, 7:59 a.m.
Registration Date	Jan. 26, 2021, 2:58 p.m.
Last Update	Nov. 21, 2024, 11:39 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:qemu:qemu::::::::			2.5.1

Related information, measures and tools

No	URL	タグ
1	http://www.debian.org/security/2016/dsa-3469	Third Party Advisory
2	http://www.debian.org/security/2016/dsa-3469	Third Party Advisory
3	http://www.debian.org/security/2016/dsa-3470	Third Party Advisory
4	http://www.debian.org/security/2016/dsa-3470	Third Party Advisory
5	http://www.debian.org/security/2016/dsa-3471	Third Party Advisory
6	http://www.debian.org/security/2016/dsa-3471	Third Party Advisory
7	http://www.openwall.com/lists/oss-security/2016/01/04/1	Mailing List Third Party Advisory
8	http://www.openwall.com/lists/oss-security/2016/01/04/1	Mailing List Third Party Advisory
9	http://www.openwall.com/lists/oss-security/2016/01/04/2	Mailing List Third Party Advisory
10	http://www.openwall.com/lists/oss-security/2016/01/04/2	Mailing List Third Party Advisory
11	http://www.securityfocus.com/bid/79820	Third Party Advisory VDB Entry
12	http://www.securityfocus.com/bid/79820	Third Party Advisory VDB Entry
13	http://www.securitytracker.com/id/1034574	Third Party Advisory VDB Entry
14	http://www.securitytracker.com/id/1034574	Third Party Advisory VDB Entry
15	https://bugzilla.redhat.com/show_bug.cgi?id=1264929	Issue Tracking
16	https://bugzilla.redhat.com/show_bug.cgi?id=1264929	Issue Tracking
17	https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00050.html	Patch Vendor Advisory
18	https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00050.html	Patch Vendor Advisory
19	https://security.gentoo.org/glsa/201602-01	Third Party Advisory
20	https://security.gentoo.org/glsa/201602-01	Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-125	境界外読み取り	https://cwe.mitre.org/data/definitions/125.html
2	CWE-787	境界外書き込み	https://cwe.mitre.org/data/definitions/787.html

JVN Vulnerability Information

NE2000 デバイスエミュレーションサポートでビルドされた QEMU におけるQEMU メモリのバイトをリークされる脆弱性

Title	NE2000 デバイスエミュレーションサポートでビルドされた QEMU におけるQEMU メモリのバイトをリークされる脆弱性
Summary	NE2000 デバイスエミュレーションサポートでビルドされた QEMU (別名 Quick Emulator) には、境界外 (OOB) 読み取り/書き込みアクセスの問題によって、'ioport' の読み取り/書き込み操作の実行中に、QEMU メモリのバイトをリークされる、または破損される脆弱性が存在します。
Possible impacts	特権 (CAP_SYS_RAWIO) 付きユーザ/プロセスにより、QEMU メモリのバイトをリークされる、または破損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	Sept. 21, 2015, midnight
Registration Date	Jan. 12, 2017, 3:33 p.m.
Last Update	Jan. 12, 2017, 3:33 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-2015-8743	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8743
National Vulnerability Database (NVD)
2	CVE-2015-8743	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8743

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-125	https://cwe.mitre.org/data/definitions/125.html
2	CWE-787	https://cwe.mitre.org/data/definitions/787.html

ベンダー情報

No	Name	URL
Qemu-devel
1	[PATCH v3] net: ne2000: fix bounds check in ioport oper	https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00050.html
Red Hat Bugzilla
2	Bug 1264929	https://bugzilla.redhat.com/show_bug.cgi?id=1264929

Change Log

No	Changed Details	Date of change
0	[2017年01月12日] 掲載	Feb. 17, 2018, 10:37 a.m.