Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2016-7909
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-7909
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-7909
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST | |
|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
NIST |
CWE ids for CVE-2016-7909
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-7909
-
https://security.gentoo.org/glsa/201611-11
QEMU: Multiple vulnerabilities (GLSA 201611-11) — Gentoo securityThird Party Advisory
-
http://www.securityfocus.com/bid/93275
QEMU Infinite Loop CVE-2016-7909 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07942.html
[Qemu-devel] [PATCH 1/2] net: pcnet: check rx/tx descriptor ring lengthMailing List;Patch;Vendor Advisory
-
http://www.openwall.com/lists/oss-security/2016/10/03/6
oss-security - Re: CVE Request Qemu: net: pcnet: infinite loop in pcnet_rdra_addrMailing List;Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
[SECURITY] [DLA 1599-1] qemu security updateThird Party Advisory
-
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
openSUSE-SU-2016:3237-1: moderate: Security update for qemuMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/10/03/3
oss-security - CVE Request Qemu: net: pcnet: infinite loop in pcnet_rdra_addrMailing List;Third Party Advisory
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