VulnerabilityModified
CVE-2018-19963
An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.
HIGH 7.8EPSS 0.36%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.36% probability · 30th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- xen/xen
- Source
- cve@mitre.org
References
- http://www.securityfocus.com/bid/106182Third Party Advisory, VDB Entry
- https://xenbits.xen.org/xsa/advisory-276.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/106182Third Party Advisory, VDB Entry
- https://xenbits.xen.org/xsa/advisory-276.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.