Improper Data Handling Affecting xen package, versions [3.2.0,4.6.0]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-UNMANAGED-XEN-2383722
  • published26 Jan 2022
  • disclosed30 Oct 2015
  • creditUnknown

Introduced: 30 Oct 2015

CVE-2015-7971  (opens in a new tab)
CWE-19  (opens in a new tab)

How to fix?

There is no fixed version for xen.

Overview

Affected versions of this package are vulnerable to Improper Data Handling. Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and profiling hypercalls, which allows local guests to cause a denial of service via a sequence of crafted (1) HYPERCALL_xenoprof_op hypercalls, which are not properly handled in the do_xenoprof_op function in common/xenoprof.c, or (2) HYPERVISOR_xenpmu_op hypercalls, which are not properly handled in the do_xenpmu_op function in arch/x86/cpu/vpmu.c.

References

CVSS Scores

version 3.1