CVE-2017-14319

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-09-12 · updated 2026-06-17

Description

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 products

xen: through 4.9.0

References

http://www.securityfocus.com/bid/100819
http://www.securitytracker.com/id/1039351
http://xenbits.xen.org/xsa/advisory-234.html
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
https://support.citrix.com/article/CTX227185
https://www.debian.org/security/2017/dsa-4050
http://www.securityfocus.com/bid/100819
http://www.securitytracker.com/id/1039351
http://xenbits.xen.org/xsa/advisory-234.html
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
https://support.citrix.com/article/CTX227185
https://www.debian.org/security/2017/dsa-4050

Get alerted when CVE-2017-14319 or the next vulnerability affects your stack