CVE-2017-14319

published 2017-09-12

CVE-2017-14319: A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table…

Priority P3 37 high 8.8 CVSS 3.0

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

A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	xen	< xen 4.8.2+xsa245-0+deb9u1 (bookworm)	xen 4.8.2+xsa245-0+deb9u1 (bookworm)
xen	xen	<= 4.9.0	—
xen	xen	>= 0 < 4.8.2+xsa245-0+deb9u1	4.8.2+xsa245-0+deb9u1
xen	xen	>= 0 < 4.8.2+xsa245-0+deb9u1	4.8.2+xsa245-0+deb9u1
xen	xen	>= 0 < 4.8.2+xsa245-0+deb9u1	4.8.2+xsa245-0+deb9u1
xen	xen	>= 0 < 4.8.2+xsa245-0+deb9u1	4.8.2+xsa245-0+deb9u1

CVSS provenance

nvd v3.0 8.8 HIGH CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

nvd v2.0 7.2 HIGH AV:L/AC:L/Au:N/C:C/I:C/A:C

osv 8.8 HIGH

vendor_debian 8.8 HIGH

vendor_redhat 8.8 HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.