// For flags

CVE-2016-9923

Gentoo Linux Security Advisory 201701-49

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Quick Emulator (Qemu) built with the 'chardev' backend support is vulnerable to a use after free issue. It could occur while hotplug and unplugging the device in the guest. A guest user/process could use this flaw to crash a Qemu process on the host resulting in DoS.

Quick Emulator (Qemu) construido con el soporte backend 'chardev' es vulnerable a un problema de uso después de liberación. Podría ocurrir mientras el dispositivo se conecta en caliente y se desenchufa en el huésped. Un usuario/proceso invitado podría usar esta falla para bloquear un proceso Qemu en el host resultando en DoS.

Multiple vulnerabilities have been found in QEMU, the worst of which could cause a Denial of Service condition. Versions less than 2.8.0 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-12-08 CVE Reserved
  • 2016-12-23 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Qemu
Search vendor "Qemu"
 Qemu
Search vendor "Qemu" for product "Qemu"
 <= 2.7.1
Search vendor "Qemu" for product "Qemu" and version " <= 2.7.1"
-
Affected