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CVE-2016-9923

Date: December 23, 2016

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.

Severity Score

Related Resources (7)

https://nvd.nist.gov/vuln/detail/CVE-2016-9923
https://security.gentoo.org/glsa/201701-49
http://www.openwall.com/lists/oss-security/2016/12/09/2
https://access.redhat.com/security/cve/CVE-2016-9923
http://www.securityfocus.com/bid/94827
https://security-tracker.debian.org/tracker/CVE-2016-9923
https://www.mend.io/vulnerability-database/CVE-2016-9923

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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