National Cyber Awareness System

Vulnerability Summary for CVE-2012-4565

Overview

The tcp_illinois_info function in net/ipv4/tcp_illinois.c in the Linux kernel before 3.4.19, when the net.ipv4.tcp_congestion_control illinois setting is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) by reading TCP stats.

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://github.com/torvalds/linux/commit/8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664

Hyperlink:https://github.com/torvalds/linux/commit/8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=871848

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=871848

External Source: UBUNTU

Name: USN-1652-1

Hyperlink:http://www.ubuntu.com/usn/USN-1652-1

External Source: UBUNTU

Name: USN-1651-1

Hyperlink:http://www.ubuntu.com/usn/USN-1651-1

External Source: UBUNTU

Name: USN-1650-1

Hyperlink:http://www.ubuntu.com/usn/USN-1650-1

External Source: UBUNTU

Name: USN-1649-1

Hyperlink:http://www.ubuntu.com/usn/USN-1649-1

External Source: UBUNTU

Name: USN-1648-1

Hyperlink:http://www.ubuntu.com/usn/USN-1648-1

External Source: UBUNTU

Name: USN-1647-1

Hyperlink:http://www.ubuntu.com/usn/USN-1647-1

External Source: UBUNTU

Name: USN-1646-1

Hyperlink:http://www.ubuntu.com/usn/USN-1646-1

External Source: UBUNTU

Name: USN-1645-1

Hyperlink:http://www.ubuntu.com/usn/USN-1645-1

External Source: UBUNTU

Name: USN-1644-1

Hyperlink:http://www.ubuntu.com/usn/USN-1644-1

External Source: BID

Name: 56346

Hyperlink:http://www.securityfocus.com/bid/56346

External Source: MLIST

Name: [oss-security] 20121031 Re: CVE Request -- kernel: net: divide by zero in tcp algorithm illinois

Hyperlink:http://www.openwall.com/lists/oss-security/2012/10/31/5

External Source: CONFIRM

Name: http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.19

Hyperlink:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.19

External Source: REDHAT

Name: RHSA-2012:1580

Hyperlink:http://rhn.redhat.com/errata/RHSA-2012-1580.html

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664