CVE-2015-8104

critical

Published 2015-11-16 · Modified 2026-05-06

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CVSS v3

10.0

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

10.0

Description

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c.

Predictions

Exploit likelihood

98%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Linux kernel Affected 1 release

Version	Status	Fixed in
—	Affected	—

Ubuntu Affected 3 releases

Version	Status	Fixed in
15.04	Affected	—
14.04	Affected	—
12.04	Affected	—

Debian Mixed 8 releases

Version	Status	Fixed in
trixie	Fixed	`4.2.6-2`
sid	Fixed	`4.2.6-2`
forky	Fixed	`4.2.6-2`
bullseye	Fixed	`4.2.6-2`
bookworm	Fixed	`4.2.6-2`
9.0	Affected	—
8.0	Affected	—
7.0	Affected	—

Application impact

Vendor	Product	Versions	Fixed
oracle	vm_virtualbox	`{"startIncluding":"4.0.0","endIncluding":"4.0.34"}`

References

CWEs

CWE-399

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.