National Cyber Awareness System

Vulnerability Summary for CVE-2011-2525

Overview

The qdisc_notify function in net/sched/sch_api.c in the Linux kernel before 2.6.35 does not prevent tc_fill_qdisc function calls referencing builtin (aka CQ_F_BUILTIN) Qdisc structures, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted call.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=720552

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=720552

External Source: MLIST

Name: [oss-security] 20110712 CVE-2011-2525 kernel: kernel: net_sched: fix qdisc_notify()

Hyperlink:http://openwall.com/lists/oss-security/2011/07/12/1

External Source: CONFIRM

Name: http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.35

Hyperlink:http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.35

External Source: MLIST

Name: [netdev] 20100521 tc: RTM_GETQDISC causes kernel OOPS

Hyperlink:http://kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=53b0f08042f04813cd1a7473dacd3edfacb28eb3

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=53b0f08042f04813cd1a7473dacd3edfacb28eb3