CVE-2017-8903

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 56%
VendorProductVersion
xenxen
4.8.0
xenxen
4.8.1
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 4.8.0-1ubuntu2.1
released
yakkety
Fixed 4.7.2-0ubuntu1.2
released
xenial
Fixed 4.6.5-0ubuntu1.1
released
trusty
Fixed 4.4.2-0ubuntu0.14.04.11
released
References
http://www.securityfocus.com/bid/98426
http://www.securitytracker.com/id/1038386
https://blog.xenproject.org/2017/05/02/updates-on-xsa-213-xsa-214-and-xsa-215/
https://security.gentoo.org/glsa/201705-11
https://xenbits.xen.org/xsa/advisory-213.html
http://www.securityfocus.com/bid/98426
http://www.securitytracker.com/id/1038386
https://blog.xenproject.org/2017/05/02/updates-on-xsa-213-xsa-214-and-xsa-215/
https://security.gentoo.org/glsa/201705-11
https://xenbits.xen.org/xsa/advisory-213.html