CVE-2016-6835

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Summary

CVECVE-2016-6835
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-12-10 00:59:06 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

EPSS: 0.000720000 probability, percentile 0.217860000 (date 2026-05-10)

Problem Types: NVD-CWE-Other | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
2.0[email protected]Primary2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:L/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 8.0 All All All
Application Qemu Qemu All All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Application Redhat Virtualization 4.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - CVE request Qemu: buffer overflow in vmxnet_tx_pkt_parse_headers() in vmxnet3 device emulation af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
oss-security - Re: CVE request Qemu: buffer overflow in vmxnet_tx_pkt_parse_headers() in vmxnet3 device emulation af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
[SECURITY] [DLA 1497-1] qemu security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.qemu.org Git - qemu.git/commit af854a3a-2127-422b-91ae-364da2661108 git.qemu.org
Re: [Qemu-stable] [PATCH] net: vmxnet: check IP header length af854a3a-2127-422b-91ae-364da2661108 lists.gnu.org Patch, Vendor Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
git.qemu.org Git - qemu.git/commit MITRE git.qemu.org
CVE-2016-6835 - Red Hat Customer Portal MITRE access.redhat.com
Bug 1369012 – CVE-2016-6835 Qemu: net: vmxnet: buffer overflow in vmxnet_tx_pkt_parse_headers() in vmxnet3 device emulation MITRE bugzilla.redhat.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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