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CVE-2010-2942

Impact:
Moderate
Public Date:
2010-08-17
IAVA:
2011-A-0147
CWE:
CWE-401
Bugzilla:
624903: CVE-2010-2942 kernel: net sched: fix some kernel memory leaks

The MITRE CVE dictionary describes this issue as:

The actions implementation in the network queueing functionality in the Linux kernel before 2.6.36-rc2 does not properly initialize certain structure members when performing dump operations, which allows local users to obtain potentially sensitive information from kernel memory via vectors related to (1) the tcf_gact_dump function in net/sched/act_gact.c, (2) the tcf_mirred_dump function in net/sched/act_mirred.c, (3) the tcf_nat_dump function in net/sched/act_nat.c, (4) the tcf_simp_dump function in net/sched/act_simple.c, and (5) the tcf_skbedit_dump function in net/sched/act_skbedit.c.

Find out more about CVE-2010-2942 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the version of Linux kernel as shipped with Red Hat
Enterprise Linux 3 as it did not include upstream commit be84c7f6 (history repository) that introduced the problem. A future kernel update in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG will address this issue.

CVSS v2 metrics

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

Base Score 2.1
Base Metrics AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector Local
Access Complexity Low
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
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2010:0771 2010-10-14
Red Hat Enterprise Linux 4 (kernel) RHSA-2010:0779 2010-10-19
Red Hat Enterprise Linux 5 (kernel) RHSA-2010:0723 2010-09-29

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