An out-of-bounds memory access flaw was found in the USBVision USB camera driver (usbvision_probe() function in drivers/media/usb/usbvision/usbvision-video.c). The driver assumes that the interfaces numbers of the USB device are always in 0,1,2,3... order. By using a specially crafted USB device which advertises an out-of-order number on one of its interfaces, an unprivileged user with physical access to the system can trigger a kernel NULL-pointer dereference causing a system freeze (denial of service).
Find out more about CVE-2015-7833 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2.
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/.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4 |
|---|---|
| Base Metrics | AV:L/AC:H/Au:N/C:N/I:N/A:C |
| Access Vector | Local |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Complete |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 2 | realtime-kernel | Will not fix |
| Red Hat Enterprise Linux 7 | kernel-rt | Will not fix |
| Red Hat Enterprise Linux 7 | kernel | Will not fix |
| Red Hat Enterprise Linux 6 | kernel | Will not fix |
| Red Hat Enterprise Linux 5 | kernel | Not affected |
Vulmon