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CVE-2016-2391

Good to know:

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Date: June 16, 2016

The ohci_bus_start function in the USB OHCI emulation support (hw/usb/hcd-ohci.c) in QEMU allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors related to multiple eof_timers.

Language: C

Severity Score

Related Resources (12)

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fa1298c2d623522eda7b4f1f721fcb935abb7360
https://security-tracker.debian.org/tracker/CVE-2016-2391
https://bugzilla.redhat.com/show_bug.cgi?id=1304794
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-2391
https://nvd.nist.gov/vuln/detail/CVE-2016-2391
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
http://www.openwall.com/lists/oss-security/2016/02/16/2
https://lists.gnu.org/archive/html/qemu-devel/2016-02/msg03374.html
http://www.securityfocus.com/bid/83263
http://www.ubuntu.com/usn/USN-2974-1
https://access.redhat.com/security/cve/CVE-2016-2391
https://www.mend.io/vulnerability-database/CVE-2016-2391

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
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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