CVE-2016-2391
Qemu: usb: multiple eof_timers in ohci module leads to null pointer dereference
Severity
LowRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · February 16, 2016
Updated · November 21, 2025
Description
A NULL pointer dereference flaw was found in the QEMU emulator built with USB OHCI emulation support. The flaw could occur when OHCI transitions to the OHCI_USB_OPERATIONAL state, leading to the creation of multiple EOF timers. A privileged user inside a guest could exploit this flaw to crash the QEMU process on the host (denial of service).
Statement
This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 2.3AV:A/AC:M/Au:S/C:N/I:N/A:P
CWE-476 · NULL Pointer Dereference