CVE-2016-9386

The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 28%
VendorProductVersion
citrixxenserver
6.0.2
citrixxenserver
6.2.0
citrixxenserver
6.5
citrixxenserver
7.0
xenxen
*
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
xen
bullseye
4.14.6-1
fixed
bullseye (security)
4.14.5+94-ge49571868d-1
fixed
bookworm
4.17.3+10-g091466ba55-1~deb12u1
fixed
sid
4.17.3+36-g54dacb5c02-1
fixed
trixie
4.17.3+36-g54dacb5c02-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xen
zesty
Fixed 4.8.0-1ubuntu1
released
yakkety
Fixed 4.7.0-0ubuntu2.1
released
xenial
Fixed 4.6.0-1ubuntu4.3
released
trusty
Fixed 4.4.2-0ubuntu0.14.04.9
released
precise
Fixed 4.1.6.1-0ubuntu0.12.04.13
released
Common Weakness Enumeration
References
http://www.securityfocus.com/bid/94471
http://www.securitytracker.com/id/1037340
http://xenbits.xen.org/xsa/advisory-191.html
https://security.gentoo.org/glsa/201612-56
https://support.citrix.com/article/CTX218775
http://www.securityfocus.com/bid/94471
http://www.securitytracker.com/id/1037340
http://xenbits.xen.org/xsa/advisory-191.html
https://security.gentoo.org/glsa/201612-56
https://support.citrix.com/article/CTX218775