Vulnerability Monitor

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CVE-2015-2151

The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.

Published

2015-03-12T14:59:03.837

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.2 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-264

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	fedoraproject	fedora	20	Yes
Operating System	fedoraproject	fedora	21	Yes
Operating System	fedoraproject	fedora	22	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	xen	xen	3.2.0	Yes
Operating System	xen	xen	3.2.1	Yes
Operating System	xen	xen	3.2.2	Yes
Operating System	xen	xen	3.2.3	Yes
Operating System	xen	xen	3.3.0	Yes
Operating System	xen	xen	3.3.1	Yes
Operating System	xen	xen	3.3.2	Yes
Operating System	xen	xen	3.4.0	Yes
Operating System	xen	xen	3.4.1	Yes
Operating System	xen	xen	3.4.2	Yes
Operating System	xen	xen	3.4.3	Yes
Operating System	xen	xen	3.4.4	Yes
Operating System	xen	xen	4.0.0	Yes
Operating System	xen	xen	4.0.1	Yes
Operating System	xen	xen	4.0.2	Yes
Operating System	xen	xen	4.0.3	Yes
Operating System	xen	xen	4.0.4	Yes
Operating System	xen	xen	4.1.0	Yes
Operating System	xen	xen	4.1.1	Yes
Operating System	xen	xen	4.1.2	Yes
Operating System	xen	xen	4.1.3	Yes
Operating System	xen	xen	4.1.4	Yes
Operating System	xen	xen	4.1.5	Yes
Operating System	xen	xen	4.1.6.1	Yes
Operating System	xen	xen	4.2.0	Yes
Operating System	xen	xen	4.2.1	Yes
Operating System	xen	xen	4.2.2	Yes
Operating System	xen	xen	4.2.3	Yes
Operating System	xen	xen	4.3.0	Yes
Operating System	xen	xen	4.3.1	Yes
Operating System	xen	xen	4.4.0	Yes
Operating System	xen	xen	4.4.0	Yes
Operating System	xen	xen	4.4.1	Yes
Operating System	xen	xen	4.5.0	Yes

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html ([email protected])
http://support.citrix.com/article/CTX200484 ([email protected])
http://www.debian.org/security/2015/dsa-3181 Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html ([email protected])
http://www.securityfocus.com/bid/73015 ([email protected])
http://www.securitytracker.com/id/1031806 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1031903 Third Party Advisory, VDB Entry ([email protected])
http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm ([email protected])
http://xenbits.xen.org/xsa/advisory-123.html Patch, Vendor Advisory ([email protected])
https://security.gentoo.org/glsa/201604-03 ([email protected])
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html (af854a3a-2127-422b-91ae-364da2661108)
http://support.citrix.com/article/CTX200484 (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2015/dsa-3181 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/73015 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1031806 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1031903 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm (af854a3a-2127-422b-91ae-364da2661108)
http://xenbits.xen.org/xsa/advisory-123.html Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201604-03 (af854a3a-2127-422b-91ae-364da2661108)