CVE-2016-6834: n/a vulnerability

CVE-2016-6834: The net_tx_pkt_do_sw_fragmentation function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows loca...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 01:43 UTC (UTC+00:00)

Security readout for executives and security teams

A privileged user inside a QEMU guest could crash the QEMU process by triggering a packet fragmentation bug. The main business impact is availability: affected virtual machines or services depending on that QEMU process may stop unexpectedly. The source bundle does not provide CVSS, affected version ranges, or evidence of active exploitation. Exposure is most relevant to QEMU-based virtualization where an untrusted or semi-trusted guest administrator can control guest networking. Risk is lower where guest administrators are fully trusted, workloads are single-tenant, or QEMU packages already include the referenced upstream fix. Treat as a virtualization availability risk. Prioritize shared hosting, lab, customer-managed guest, and multi-tenant environments first. For trusted single-tenant guests, handle through normal QEMU patch management unless instability is observed. Mitigation focus: Apply QEMU vendor security updates for the affected platform.; Confirm packages include the upstream fragment length validation fix.; Review Gentoo GLSA-201609-01 and Debian DLA-1599-1 where applicable..

Prepared: Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2016-6834 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 10, 2016, 00:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
GLSA-201609-01CVE reference · vendor-advisory, x_refsource_GENTOO
[qemu-devel] 20160809 [PULL 1/3] net: check fragment length during fragmentationCVE reference · mailing-list, x_refsource_MLIST
[debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security updateCVE reference · mailing-list, x_refsource_MLIST

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.