CVE-2015-2151

Description

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.

Category

7.2
CVSS
Severity: High
CVSS 2.0 •
EPSS 0.23%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm
http://support.citrix.com/article/CTX200484
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html third party advisory vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://xenbits.xen.org/xsa/advisory-123.html patch vendor advisory
http://www.securitytracker.com/id/1031903 third party advisory vdb entry
http://www.debian.org/security/2015/dsa-3181 third party advisory vendor advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html vendor advisory
https://security.gentoo.org/glsa/201604-03 vendor advisory
http://www.securityfocus.com/bid/73015 vdb entry
http://www.securitytracker.com/id/1031806 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2015-2151?
CVE-2015-2151 has been scored as a high severity vulnerability.
How to fix CVE-2015-2151?
To fix CVE-2015-2151, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-2151 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-2151 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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