CVE-2016-9932 (NVD)

2017-01-26

CMPXCHG8B emulation in Xen 3.3.x through 4.7.x on x86 systems allows local HVM guest OS users to obtain sensitive information from host stack memory via a "supposedly-ignored" operand size prefix.

Products Xen
Type Information Exposure (CWE-200)
First patch - None (likely due to unavailable code)
Links • http://www.securitytracker.com/id/1037468
• https://support.citrix.com/article/CTX219378
• https://security.gentoo.org/glsa/201612-56
• http://xenbits.xen.org/xsa/advisory-200.html
• http://www.debian.org/security/2017/dsa-3847