CVE-2015-7970

The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.9 UNKNOWN
LOCAL
LOW
AV:L/AC:L/Au:N/C:N/I:N/A:C
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 33%
VendorProductVersion
xenxen
3.4.0
xenxen
3.4.1
xenxen
3.4.2
xenxen
3.4.3
xenxen
3.4.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
xen
bullseye
4.14.6-1
fixed
wheezy
no-dsa
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
wily
Fixed 4.5.1-0ubuntu1.1
released
vivid
Fixed 4.5.0-1ubuntu4.3
released
trusty
Fixed 4.4.2-0ubuntu0.14.04.3
released
precise
Fixed 4.1.6.1-0ubuntu0.12.04.7
released
Common Weakness Enumeration
References
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
http://support.citrix.com/article/CTX202404
http://www.debian.org/security/2015/dsa-3414
http://www.securityfocus.com/bid/77362
http://www.securitytracker.com/id/1034034
http://xenbits.xen.org/xsa/advisory-150.html
https://security.gentoo.org/glsa/201604-03
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
http://support.citrix.com/article/CTX202404
http://www.debian.org/security/2015/dsa-3414
http://www.securityfocus.com/bid/77362
http://www.securitytracker.com/id/1034034
http://xenbits.xen.org/xsa/advisory-150.html
https://security.gentoo.org/glsa/201604-03