VIR Vulnerability Intelligence Relay

CVE-2016-7422

medium
Published 2016-12-10 · Modified 2026-05-06
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
6.0
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
6.0

Description

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.

Predictions

Exploit likelihood
60%
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
suse SUSE Affected 2 releases
VersionStatusFixed in
42.2 Affected —
— Affected —
debian Debian Fixed 5 releases
VersionStatusFixed in
trixie Fixed 1:2.7+dfsg-1
sid Fixed 1:2.7+dfsg-1
forky Fixed 1:2.7+dfsg-1
bullseye Fixed 1:2.7+dfsg-1
bookworm Fixed 1:2.7+dfsg-1
redhat Red Hat Fixed 1 release
VersionStatusFixed in
7.0 Not affected —

Application impact
VendorProductVersionsFixed
qemuqemu{"endIncluding":"2.7.1"}
redhat redhatopenstack6.0
redhat redhatopenstack7.0
redhat redhatopenstack8
redhat redhatopenstack9
redhat redhatopenstack10
redhat redhatopenstack11
redhat redhatvirtualization4.0

References

CWEs

CWE-120

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

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