CVE-2016-6835

medium

Published 2016-12-10 · Modified 2026-05-06

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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 vmxnet_tx_pkt_parse_headers function in hw/net/vmxnet_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (buffer over-read) by leveraging failure to check IP header length.

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

OS	Version	Status	Fixed in
sles		affected
debian	8.0	affected
rhel	7.0	not-affected
debian	bookworm	fixed	`1:2.6+dfsg-3.1`
debian	bullseye	fixed	`1:2.6+dfsg-3.1`
debian	forky	fixed	`1:2.6+dfsg-3.1`
debian	sid	fixed	`1:2.6+dfsg-3.1`
debian	trixie	fixed	`1:2.6+dfsg-3.1`

Application impact

Vendor	Product	Versions	Fixed
qemu	qemu	`{"endExcluding":"2.6.0"}`	`2.6.0`
redhat	virtualization	`4.0`

References

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

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