National Cyber Awareness System

Vulnerability Summary for CVE-2011-2699

Overview

The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets.

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/87c48fa3b4630905f98268dde838ee43626a060c

Hyperlink:https://github.com/torvalds/linux/commit/87c48fa3b4630905f98268dde838ee43626a060c

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=723429

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=723429

External Source: SECTRACK

Name: 1027274

Hyperlink:http://www.securitytracker.com/id?1027274

External Source: MLIST

Name: [oss-security] 20110720 Re: CVE request: kernel: ipv6: make fragment identifications less predictable

Hyperlink:http://www.openwall.com/lists/oss-security/2011/07/20/5

External Source: CONFIRM

Name: http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

Hyperlink:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=87c48fa3b4630905f98268dde838ee43626a060c

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=87c48fa3b4630905f98268dde838ee43626a060c