Public Date:
916191: CVE-2013-1774 Kernel: USB io_ti driver NULL pointer dereference in routine chase_port

The MITRE CVE dictionary describes this issue as:

The chase_port function in drivers/usb/serial/io_ti.c in the Linux kernel before 3.7.4 allows local users to cause a denial of service (NULL pointer dereference and system crash) via an attempted /dev/ttyUSB read or write operation on a disconnected Edgeport USB serial converter.

Find out more about CVE-2013-1774 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5. This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise MRG 2 may address this issue.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 3.8
Base Metrics AV:L/AC:H/Au:S/C:N/I:N/A:C
Access Vector Local
Access Complexity High
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (kernel) RHSA-2013:0744 2013-04-23
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2013:0829 2013-05-20

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 kernel Not affected