Vulnerability in Qemu
CVE-2016-7909
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Qemu
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- www.securityfocus.com/bid/93275 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201611-11 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/10/03/6 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/10/03/3 (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2016-12/msg00140.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/11/msg00038.html (mailing-list, Third Party Advisory)
- lists.gnu.org/archive/html/qemu-devel/2016-09/msg07942.html (Vendor Advisory, mailing-list, Patch, Mailing List)
Frequently asked questions
- What is CVE-2016-7909?
- CVE-2016-7909 is a medium-severity vulnerability in Qemu, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 4.4/10. Published 2016-10-05.
- How severe is CVE-2016-7909?
- Medium severity. CVSS v3 base score is 4.4 out of 10.