National Cyber Awareness System

Vulnerability Summary for CVE-2007-1734

Overview

The DCCP support in the do_dccp_getsockopt function in net/dccp/proto.c in Linux kernel 2.6.20 and later does not verify the upper bounds of the optlen value, which allows local users running on certain architectures to read kernel memory or cause a denial of service (oops), a related issue to CVE-2007-1730.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

Vendor Statements (disclaimer)

Official Statement from Red Hat (10/23/2007)

Not vulnerable. This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.

References to Advisories, Solutions, and Tools

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External Source: SECTRACK

Name: 1017820

Hyperlink:http://www.securitytracker.com/id?1017820

External Source: BUGTRAQ

Name: 20070327 Re: [Full-disclosure] Linux Kernel DCCP Memory Disclosure Vulnerability

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/463969/100/0/threaded

External Source: XF

Name: linux-kernel-dccp-info-disclosure(43321)

Hyperlink:http://xforce.iss.net/xforce/xfdb/43321

External Source: XF

Name: kernel-dccp-information-disclosure(33274)

Hyperlink:http://xforce.iss.net/xforce/xfdb/33274

External Source: SREASON

Name: 2511

Hyperlink:http://securityreason.com/securityalert/2511