CVE-2016-2391
MEDIUM severity · CVSS 5 · CWE-476
5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionRequired
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=1304794 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=1304794Patch
- https://lists.gnu.org/archive/html/qemu-devel/2016-02/msg03374.htmlPatch
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fa1298c2d623522eda7b4f1f721fcb935abb7360
- http://www.openwall.com/lists/oss-security/2016/02/16/2Advisory
- http://www.securityfocus.com/bid/83263Advisory
- http://www.ubuntu.com/usn/USN-2974-1Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlAdvisory