|Bugzilla:||648659: CVE-2010-4074 kernel: drivers/usb/serial/mos*.c: reading uninitialized stack memory|
The MITRE CVE dictionary describes this issue as:
The USB subsystem in the Linux kernel before 2.6.36-rc5 does not properly initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel stack memory via vectors related to TIOCGICOUNT ioctl calls, and the (1) mos7720_ioctl function in drivers/usb/serial/mos7720.c and (2) mos7840_ioctl function in drivers/usb/serial/mos7840.c.
This issue did not affect the versions of Linux kernel as shipped with Red Hat
Enterprise Linux 3, 4, and 5 as they did not include support for Moschip USB
serial port adapters.
CVSS v2 metrics
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Red Hat security errata
|MRG Grid for RHEL 5 Server (kernel-rt)||RHSA-2010:0958||December 08, 2010|
|Red Hat Enterprise Linux version 6 (kernel)||RHSA-2011:0007||January 11, 2011|
Red Hat would like to thank Dan Rosenberg for reporting this issue.
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For clarification or corrections please contact the Red Hat Security Response Team.