Public Date:
566624: CVE-2010-1083 kernel: information leak via userspace USB interface

The MITRE CVE dictionary describes this issue as:

The processcompl_compat function in drivers/usb/core/devio.c in Linux kernel 2.6.x through 2.6.32, and possibly other versions, does not clear the transfer buffer before returning to userspace when a USB command fails, which might make it easier for physically proximate attackers to obtain sensitive information (kernel memory).

Find out more about CVE-2010-1083 from the MITRE CVE dictionary dictionary and NIST NVD.


Red Hat is aware of this issue and is tracking it via the following bug: This issue has been rated as having low security impact. A future update in Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG may address this flaw. This issue is not planned to be fixed in Red Hat Enterprise Linux 3, due to this product being in Production 3 of its maintenance life-cycle, where only qualified security errata of important or critical impact are addressed. For further information about Errata Support Policy, visit:

CVSS v2 metrics

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

Base Score 1.9
Base Metrics AV:L/AC:M/Au:N/C:P/I:N/A:N
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

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 5 (kernel) RHSA-2010:0723 2010-09-29
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2010:0631 2010-08-17
Red Hat Enterprise Linux version 4 (kernel) RHSA-2010:0394 2010-05-05


Red Hat would like to thank Marcus Meissner for reporting this issue.