CVE-2016-7908
"QEMU McF FEC Buffer Descriptor DoS Vulnerability"
Description
The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
INFO
Published Date :
Oct. 5, 2016, 4:59 p.m.
Last Modified :
Feb. 12, 2023, 11:25 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-7908.
| URL | Resource |
|---|---|
| http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a | |
| http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/10/03/2 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/10/03/5 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/93273 | Third Party Advisory VDB Entry |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html | Third Party Advisory |
| https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html | Mailing List Patch Vendor Advisory |
| https://security.gentoo.org/glsa/201611-11 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-7908 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-7908 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Removed Reference http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a [Issue Tracking, Patch, Vendor Advisory] Added Reference http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=070c4b92b8cd5390889716677a0b92444d6e087a [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 10, 2020
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a Issue Tracking, Patch http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a Issue Tracking, Patch, Vendor Advisory Changed Reference Type http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html No Types Assigned http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html Mailing List, Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/93273 No Types Assigned http://www.securityfocus.com/bid/93273 Third Party Advisory, VDB Entry Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/201611-11 No Types Assigned https://security.gentoo.org/glsa/201611-11 Third Party Advisory Removed CWE NIST CWE-399 Added CWE NIST CWE-835 Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 2.7.1 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 01, 2018
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html [No Types Assigned] -
CVE Modified by [email protected]
Jul. 01, 2017
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201611-11 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 07, 2017
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 28, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/93273 [No Types Assigned] -
CVE Translated by [email protected]
Oct. 12, 2016
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 05, 2016
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2016/10/03/2 No Types Assigned http://www.openwall.com/lists/oss-security/2016/10/03/2 Third Party Advisory, Mailing List Changed Reference Type http://www.openwall.com/lists/oss-security/2016/10/03/5 No Types Assigned http://www.openwall.com/lists/oss-security/2016/10/03/5 Third Party Advisory, Mailing List Changed Reference Type https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html No Types Assigned https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html Mailing List, Vendor Advisory, Patch Changed Reference Type http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a No Types Assigned http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a Issue Tracking, Patch Added CWE CWE-399 -
Initial Analysis by [email protected]
Oct. 05, 2016
Action Type Old Value New Value Changed Reference Type http://www.openwall.com/lists/oss-security/2016/10/03/2 No Types Assigned http://www.openwall.com/lists/oss-security/2016/10/03/2 Mailing List, Third Party Advisory Changed Reference Type https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html No Types Assigned https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html Mailing List, Patch, Vendor Advisory Added CVSS V3 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C) Changed CPE Configuration Configuration 1 OR Configuration 1 OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Changed Reference Type http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a No Types Assigned http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a Issue Tracking, Patch Added CWE CWE-20 Changed Reference Type http://www.openwall.com/lists/oss-security/2016/10/03/5 No Types Assigned http://www.openwall.com/lists/oss-security/2016/10/03/5 Mailing List, Third Party Advisory
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-7908 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-7908
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.24592
percentile