CVE-2018-7540

published 2018-02-27

CVE-2018-7540: An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4…

Priority P4 22 medium 6.5 CVSS 3.0

AV L AC L PR L UI N S C C N I N A H

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

Affected

7 ranges

Vendor	Product	Version range	Fixed in
debian	debian_linux	—	—
debian	xen	< xen 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 (bookworm)	xen 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 (bookworm)
xen	xen	<= 4.10.0	—
xen	xen	>= 0 < 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5	4.8.3+comet2+shim4.10.0+comet3-1+deb9u5
xen	xen	>= 0 < 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5	4.8.3+comet2+shim4.10.0+comet3-1+deb9u5
xen	xen	>= 0 < 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5	4.8.3+comet2+shim4.10.0+comet3-1+deb9u5
xen	xen	>= 0 < 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5	4.8.3+comet2+shim4.10.0+comet3-1+deb9u5

CVSS provenance

nvd v3.0 6.5 MEDIUM CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

nvd v2.0 4.9 MEDIUM AV:L/AC:L/Au:N/C:N/I:N/A:C

osv 6.5 MEDIUM

vendor_debian 6.5 MEDIUM

vendor_redhat 6.5 MEDIUM

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CWE-400