Vulnerability Details : CVE-2016-8668
The rocker_io_writel function in hw/net/rocker/rocker.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging failure to limit DMA buffer size.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2016-8668
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-8668
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-2016-8668
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
6.0
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
1.5
|
4.0
|
NIST |
CWE ids for CVE-2016-8668
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-8668
-
https://security.gentoo.org/glsa/201611-11
QEMU: Multiple vulnerabilities (GLSA 201611-11) — Gentoo securityThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/10/15/9
oss-security - Re: CVE request Qemu: net: OOB buffer access in rocker switch emulationMailing List;Third Party Advisory
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http://www.securityfocus.com/bid/93566
Qemu '/hw/net/rocker/rocker.c' Local Out-of-Bounds Read VulnerabilityThird Party Advisory;VDB Entry
-
https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02501.html
[Qemu-devel] [PATCH] net: rocker: set limit to DMA buffer sizePatch;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2016/10/14/8
oss-security - CVE request Qemu: net: OOB buffer access in rocker switch emulationMailing List;Patch;Third Party Advisory
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http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
openSUSE-SU-2016:3237-1: moderate: Security update for qemuMailing List;Third Party Advisory
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