What’s Vulnerable › Vulnerabilities

CVE-2017-10920

• Severity: critical (CVSS 10.0 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-07-05 · updated 2026-06-17
• Weakness: CWE-119

Description

The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.

Affected products

• xen: through 4.8.1

References

• http://www.debian.org/security/2017/dsa-3969
• http://www.securitytracker.com/id/1038734
• https://security.gentoo.org/glsa/201708-03
• https://security.gentoo.org/glsa/201710-17
• https://xenbits.xen.org/xsa/advisory-224.html
• http://www.debian.org/security/2017/dsa-3969
• http://www.securitytracker.com/id/1038734
• https://security.gentoo.org/glsa/201708-03
• https://security.gentoo.org/glsa/201710-17
• https://xenbits.xen.org/xsa/advisory-224.html

Get alerted when CVE-2017-10920 or the next vulnerability affects your stack