CVE-2015-7971: n/a vulnerability

CVE-2015-7971: Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and p...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 08:06 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw lets a guest virtual machine make a vulnerable Xen host flood its console logging, potentially degrading or denying service for other workloads. It requires local guest access, so the main concern is shared or multi-tenant Xen infrastructure. Exposure is likely limited to organizations operating Xen hypervisors in the 3.2.x through 4.6.x range, especially where tenants or less-trusted users control guest VMs. Non-Xen environments are not indicated as affected by the supplied sources. Treat this as a virtualization availability risk. It is not described as data theft or host code execution, but a single guest could affect service availability on vulnerable Xen hosts. Prioritize shared infrastructure and legacy Xen estates. Mitigation focus: Identify Xen hosts running versions 3.2.x through 4.6.x.; Apply Xen or distribution updates associated with XSA-152.; Review Citrix, Debian, Fedora, openSUSE, or Gentoo guidance for vendor-specific packages..

Prepared: Jun 13, 2026, 21:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 30, 2015, 15:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
GLSA-201604-03CVE reference · vendor-advisory, x_refsource_GENTOO

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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