CVE-2014-7156

low

Published 2014-10-02 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

3.3

Description

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.

Predictions

Exploit likelihood

20%

Patch ETA

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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

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`4.4.1-3`
sid	Fixed	`4.4.1-3`
forky	Fixed	`4.4.1-3`
bullseye	Fixed	`4.4.1-3`
bookworm	Fixed	`4.4.1-3`

References

CWEs

CWE-264

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

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