NVD Vulnerability Detail

CVE-2016-5105

Summary	The megasas_dcmd_cfg_read function in hw/scsi/megasas.c in QEMU, when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, uses an uninitialized variable, which allows local guest administrators to read host memory via vectors involving a MegaRAID Firmware Interface (MFI) command.
Publication Date	Sept. 2, 2016, 11:59 p.m.
Registration Date	Jan. 26, 2021, 2:13 p.m.
Last Update	Nov. 21, 2024, 11:53 a.m.

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:qemu:qemu::::::::			2.6.2

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: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://www.openwall.com/lists/oss-security/2016/05/25/5	Mailing List Third Party Advisory
2	http://www.openwall.com/lists/oss-security/2016/05/25/5	Mailing List Third Party Advisory
3	http://www.openwall.com/lists/oss-security/2016/05/26/7	Mailing List Third Party Advisory
4	http://www.openwall.com/lists/oss-security/2016/05/26/7	Mailing List Third Party Advisory
5	http://www.ubuntu.com/usn/USN-3047-1	Third Party Advisory
6	http://www.ubuntu.com/usn/USN-3047-1	Third Party Advisory
7	http://www.ubuntu.com/usn/USN-3047-2	Third Party Advisory
8	http://www.ubuntu.com/usn/USN-3047-2	Third Party Advisory
9	https://bugzilla.redhat.com/show_bug.cgi?id=1339583	Issue Tracking Third Party Advisory
10	https://bugzilla.redhat.com/show_bug.cgi?id=1339583	Issue Tracking Third Party Advisory
11	https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html	Mailing List Third Party Advisory
12	https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html	Mailing List Third Party Advisory
13	https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04419.html	Mailing List Patch Third Party Advisory
14	https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04419.html	Mailing List Patch Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-908	初期化されていないリソースの使用	https://cwe.mitre.org/data/definitions/908.html

JVN Vulnerability Information

QEMU の hw/scsi/megasas.c の megasas_dcmd_cfg_read 関数におけるホストメモリを読まれる脆弱性

Title	QEMU の hw/scsi/megasas.c の megasas_dcmd_cfg_read 関数におけるホストメモリを読まれる脆弱性
Summary	QEMU (別名 Quick Emulator) の hw/scsi/megasas.c の megasas_dcmd_cfg_read 関数は、MegaRAID SAS 8708EM2 ホストバスアダプタのエミュレーションサポートを伴いビルドされている場合、初期化されていない変数 (uninitialized variable) を使用するため、ホストメモリを読まれる脆弱性が存在します。
Possible impacts	ローカルのゲスト管理者により、MegaRAID Firmware Interface (MFI) コマンドに関する問題によって、ホストメモリを読ま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	May 25, 2016, midnight
Registration Date	Sept. 5, 2016, 3:20 p.m.
Last Update	Oct. 28, 2016, 4:28 p.m.

Affected System

Canonical

Ubuntu

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-2016-5105	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5105
National Vulnerability Database (NVD)
2	CVE-2016-5105	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-5105

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-200	https://jvndb.jvn.jp/ja/cwe/CWE-200.html

ベンダー情報

No	Name	URL
Qemu-devel
1	[PATCH v2] scsi: megasas: initialise local configuration data buffer	https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04419.html
Red Hat Bugzilla
2	Bug 1339583	https://bugzilla.redhat.com/show_bug.cgi?id=1339583
Ubuntu Security Notice
3	USN-3047-1	http://www.ubuntu.com/usn/USN-3047-1
4	USN-3047-2	http://www.ubuntu.com/usn/USN-3047-2

Change Log

No	Changed Details	Date of change
0	[2016年09月05日] 掲載 [2016年10月28日] 影響を受けるシステム：ベンダ情報の追加に伴い内容を更新ベンダ情報：Canonical (USN-3047-1) を追加ベンダ情報：Canonical (USN-3047-2) を追加	Feb. 17, 2018, 10:37 a.m.