6.5
MEDIUM
CVE-2016-2858
QEMU PRNG Denial of Service Vulnerability
Description

QEMU, when built with the Pseudo Random Number Generator (PRNG) back-end support, allows local guest OS users to cause a denial of service (process crash) via an entropy request, which triggers arbitrary stack based allocation and memory corruption.

INFO

Published Date :

April 7, 2016, 7:59 p.m.

Last Modified :

Feb. 12, 2023, 11:17 p.m.

Remotely Exploitable :

No

Impact Score :

4.0

Exploitability Score :

2.0
Affected Products

The following products are affected by CVE-2016-2858 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Canonical ubuntu_linux
1 Debian debian_linux
1 Qemu qemu
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-2016-2858.

URL Resource
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956
http://www.openwall.com/lists/oss-security/2016/03/04/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/07/4 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/84134 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2974-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1314676 Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201604-01 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-2016-2858 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-2858 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=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956 [Patch, Vendor Advisory]
    Added Reference http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956 [No Types Assigned]
  • Modified Analysis by [email protected]

    Oct. 15, 2020

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:L/AC:H/PR:N/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 http://git.qemu.org/?p=qemu.git;a=commit;h=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956 No Types Assigned http://git.qemu.org/?p=qemu.git;a=commit;h=60253ed1e6ec6d8e5ef2efe7bf755f475dce9956 Patch, Vendor Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/03/04/1 No Types Assigned http://www.openwall.com/lists/oss-security/2016/03/04/1 Mailing List, Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/03/07/4 No Types Assigned http://www.openwall.com/lists/oss-security/2016/03/07/4 Mailing List, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/84134 No Types Assigned http://www.securityfocus.com/bid/84134 Third Party Advisory, VDB Entry
    Changed Reference Type http://www.ubuntu.com/usn/USN-2974-1 No Types Assigned http://www.ubuntu.com/usn/USN-2974-1 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1314676 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1314676 Issue Tracking, Patch, Third Party Advisory
    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 Mailing List, Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/201604-01 No Types Assigned https://security.gentoo.org/glsa/201604-01 Third Party Advisory
    Removed CWE NIST CWE-119
    Added CWE NIST CWE-331
    Removed CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
    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
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
    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/201604-01 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/84134 [No Types Assigned]
  • Modified Analysis by [email protected]

    Jun. 22, 2016

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Configuration 2 OR *cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 21, 2016

    Action Type Old Value New Value
    Added Reference http://www.ubuntu.com/usn/USN-2974-1
  • CVE Translated by [email protected]

    Jun. 17, 2016

    Action Type Old Value New Value
    Removed Translation QEMU, cuando se construye con el soporte back-end Pseudo Random Number Generator (PRNG), permite a usuarios del SO invitado provocar una denegación de servicio (caída de proceso) a través de una petición entropy, lo que desencadena una asignación basada en pila arbitraria y corrupción de memoria.
    Added Translation QEMU, cuando está construido con el soporte back-end Pseudo Random Number Generator (PRNG), permite a usuarios locales del SO invitado provocar una denegación de servicio (caída del proceso) a través una petición de entropía, lo que desencadena una asignación arbitraria basada en asignación y corrupción de memoria.
  • CVE Modified by [email protected]

    Jun. 17, 2016

    Action Type Old Value New Value
    Changed Description QEMU, when built with the Pseudo Random Number Generator (PRNG) back-end support, allows guest OS users to cause a denial of service (process crash) via an entropy request, which triggers arbitrary stack based allocation and memory corruption. QEMU, when built with the Pseudo Random Number Generator (PRNG) back-end support, allows local guest OS users to cause a denial of service (process crash) via an entropy request, which triggers arbitrary stack based allocation and memory corruption.
  • Modified Analysis by [email protected]

    Apr. 11, 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:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
    Added CWE CWE-119
  • Initial Analysis by [email protected]

    Apr. 08, 2016

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-2858 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-2016-2858 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

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability