CVE-2016-6834
medium
CVSS v3
4.4
CVSS v4 NEW
—
VIR risk
4.4
Description
The net_tx_pkt_do_sw_fragmentation function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the current fragment length.
Predictions
Exploit likelihood
44%
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 withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | 8.0 | 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 |
References
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ead315e43ea0c2ca3491209c6c8db8ce3f2bbe05
- http://www.openwall.com/lists/oss-security/2016/08/11/8
- http://www.openwall.com/lists/oss-security/2016/08/18/7
- http://www.securityfocus.com/bid/92446
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01601.html
- https://security.gentoo.org/glsa/201609-01
- https://www.suse.com/security/cve/CVE-2016-6834.html
- https://security-tracker.debian.org/tracker/CVE-2016-6834
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.