CVE-2016-6835
MEDIUMCVSS 6/10EPSS 0.39%
Last modified
CVE-2016-6835 is a medium-severity vulnerability rated 6/10 on the CVSS scale. 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.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | < 2.6.0 |
| Redhat | Virtualization | 4.0 |
| Debian | Debian Linux | 8.0 |
References
- http://www.openwall.com/lists/oss-security/2016/08/11/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/08/18/4Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-stable/2016-08/msg00077.htmlPatch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/08/11/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/08/18/4Mailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2392Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-stable/2016-08/msg00077.htmlPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-6835?
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.
How severe is CVE-2016-6835?
CVE-2016-6835 has a CVSS score of 6/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6835?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2016-6835?
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Scan your code nowSource: NVD / NIST