CVE-2017-7228

Advisory lineage Upstream: 0 Downstream: 9
Modified
Published: 04 Apr 2017, 14:00
Last modified:05 Aug 2024, 15:56

Vulnerability Summary

Overall Risk (default)
medium
43/100
CVSS Score
8.2 HIGH
v3.0 (nvd)
EPSS Score
1% LOW
1% probability -0.53%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

04 Apr 2017, 14:00
Published
Vulnerability first disclosed
05 Aug 2024, 15:56
Last Modified
Vulnerability information updated

Description

An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.

CVSS Metrics

  • v3.0•HIGH•Score: 8.2CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 1.00%• Percentile: 77%

Techniques & Countermeasures

  • CWE-129•Improper Validation of Array Index

    The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

Affected Systems

  • xen•xen

    na

References (8)