CVE-2015-2151

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-03-12 · updated 2026-06-17
Weakness: CWE-264

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.

Affected products

Debian Linux: 7.0
Fedoraproject Fedora: 20, 21, 22
xen: 3.2.0, 3.2.1, 3.2.2, 3.2.3, 3.3.0, 3.3.1 (+28)

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html
http://support.citrix.com/article/CTX200484
http://www.debian.org/security/2015/dsa-3181
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.securityfocus.com/bid/73015
http://www.securitytracker.com/id/1031806
http://www.securitytracker.com/id/1031903
http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm

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