CVE-2014-8867

medium

Published 2014-12-01 · 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

4.9

Description

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host 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

OS	Version	Status	Fixed in
suse	13.1	affected
suse	13.2	affected
debian	7.0	affected
rhel	5.0	affected
debian	bookworm	fixed	`4.4.1-5`
debian	bullseye	fixed	`4.4.1-5`
debian	forky	fixed	`4.4.1-5`
debian	sid	fixed	`4.4.1-5`
debian	trixie	fixed	`4.4.1-5`

References

CWEs

CWE-17

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

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