Vulnerability Description
The pcnet_rdra_addr function in hw/net/pcnet.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by setting the (1) receive or (2) transmit descriptor ring length to 0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 2.7.1 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/3Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/6Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/93275Third Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07942.htmlMailing ListPatchVendor Advisory
- https://security.gentoo.org/glsa/201611-11Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/3Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/6Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/93275Third Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07942.htmlMailing ListPatchVendor Advisory
- https://security.gentoo.org/glsa/201611-11Third Party Advisory
FAQ
What is CVE-2016-7909?
CVE-2016-7909 is a vulnerability with a CVSS score of 4.4 (MEDIUM). The pcnet_rdra_addr function in hw/net/pcnet.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by setting the (1) ...
How severe is CVE-2016-7909?
CVE-2016-7909 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-7909?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Debian Debian Linux.