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Last updated: 7/30/2014 9:13:17 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2006-4623

Original release date: 09/11/2006
Last revised: 03/07/2011
Source: US-CERT/NIST

Overview

The Unidirectional Lightweight Encapsulation (ULE) decapsulation component in dvb-core/dvb_net.c in the dvb driver in the Linux kernel 2.6.17.8 allows remote attackers to cause a denial of service (crash) via an SNDU length of 0 in a ULE packet.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.8 (HIGH) (AV:N/AC:L/Au:N/C:N/I:N/A:C) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

Solution

There is a patch available for the affected product release.

Vendor Statements (disclaimer)

Official Statement from Red Hat (09/21/2006)
Red Hat is aware of this issue and is tracking it via the following bug for Red Hat Enterprise Linux 4: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=204912 This issue does not affect Red Hat Enterprise Linux 2.1 or 3.

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External Source: SECUNIA
Name: 23474
External Source: SECUNIA
Name: 22382
External Source: OVAL
Name: oval:org.mitre.oval:def:9775
External Source: SECUNIA
Name: 25691
External Source: BUGTRAQ
Name: 20061017 rPSA-2006-0194-1 kernel
External Source: SECUNIA
Name: 22441
External Source: DEBIAN
Name: DSA-1304
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-721
External Source: CONFIRM
Name: http://support.avaya.com/elmodocs2/security/ASA-2006-249.htm
External Source: MLIST
Name: [lkml-patch] 20060821 dvb-core: Proper handling ULE SNDU length of 0
Type: Patch Information
External Source: REDHAT
Name: RHSA-2006:0689
External Source: SECUNIA
Name: 22945
External Source: UBUNTU
Name: USN-489-1
External Source: BUGTRAQ
Name: 20070615 rPSA-2007-0124-1 kernel xen
External Source: SECUNIA
Name: 26139
External Source: VUPEN
Name: ADV-2006-3551
External Source: SECUNIA
Name: 22292
External Source: SECUNIA
Name: 25714
External Source: SECUNIA
Name: 21820
Type: Advisory; Patch Information
External Source: MANDRIVA
Name: MDKSA-2006:182
External Source: BID
Name: 19939
Type: Patch Information
External Source: SUSE
Name: SUSE-SA:2006:079

References to Check Content

Identifier: oval:org.mitre.oval:def:9775
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

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