CVE-2017-17563
UnknownEPSS 0.35%
Last modified
CVE-2017-17563 is a vulnerability of currently unknown severity. An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
Description
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | <= 4.9.1 |
References
- https://xenbits.xen.org/xsa/advisory-249.htmlMitigation, Patch, Vendor Advisory
- https://xenbits.xen.org/xsa/advisory-249.htmlMitigation, Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-17563?
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.
How severe is CVE-2017-17563?
Severity scoring for CVE-2017-17563 is pending analysis. The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.
How do I fix CVE-2017-17563?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-17563?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST