drivers/firewire/ohci.c in the Linux kernel before 2.6.32-git9, when packet-per-buffer mode is used, allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unknown other impact via an unspecified ioctl associated with receiving an ISO packet that contains zero in the payload-length field.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| N/A |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Primary | 2.0 | 4.7 | MEDIUM | AV:L/AC:M/Au:N/C:N/I:N/A:C |
Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/CVE-2009-4138 The Linux kernel packages as shipped with Red Hat Enterprise Linux 3 and 4 have a different (and older) implementation of the driver for OHCI 1394 controllers, which is not affected by this issue. It was addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0046.html A future kernel update for Red Hat Enterprise MRG will address this flaw.