CVE-2015-8701
QEMU Off-by-One Vulnerability in Rocker Switch Emulation
Description
QEMU (aka Quick Emulator) built with the Rocker switch emulation support is vulnerable to an off-by-one error. It happens while processing transmit (tx) descriptors in 'tx_consume' routine, if a descriptor was to have more than allowed (ROCKER_TX_FRAGS_MAX=16) fragments. A privileged user inside guest could use this flaw to cause memory leakage on the host or crash the QEMU process instance resulting in DoS issue.
INFO
Published Date :
Dec. 29, 2016, 10:59 p.m.
Last Modified :
Nov. 10, 2020, 6:53 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
2.0
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-2015-8701.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2015/12/28/6 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2015/12/29/1 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/79706 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1286971 | Issue Tracking |
| https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html | Patch Vendor Advisory |
| https://security.gentoo.org/glsa/201602-01 | 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-2015-8701 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2015-8701 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 -
Modified Analysis by [email protected]
Nov. 10, 2020
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Changed Reference Type https://security.gentoo.org/glsa/201602-01 No Types Assigned https://security.gentoo.org/glsa/201602-01 Third Party Advisory Removed CWE NIST CWE-189 Added CWE NIST CWE-193 Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 2.5.1.1 -
CVE Modified by [email protected]
Jul. 01, 2017
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201602-01 [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 30, 2016
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1286971 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1286971 Issue Tracking Changed Reference Type https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html No Types Assigned https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html Vendor Advisory, Patch Changed Reference Type http://www.openwall.com/lists/oss-security/2015/12/29/1 No Types Assigned http://www.openwall.com/lists/oss-security/2015/12/29/1 Third Party Advisory, Mailing List Changed Reference Type http://www.securityfocus.com/bid/79706 No Types Assigned http://www.securityfocus.com/bid/79706 Third Party Advisory, VDB Entry Changed Reference Type http://www.openwall.com/lists/oss-security/2015/12/28/6 No Types Assigned http://www.openwall.com/lists/oss-security/2015/12/28/6 Third Party Advisory, Mailing List Added CWE CWE-189 Added CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2015-8701 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-2015-8701
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