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.

• CWE-264

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

Published

Mar 12, 2015

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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