National Vulnerability Database (NVD) National Vulnerability Database (CVE-2007-5501)

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NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

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NVD contains:

CVE Vulnerabilities: 38433
Checklists: 128
US-CERT Alerts: 179
US-CERT Vuln Notes: 2345
OVAL Queries: 2517
CPE Names: 17819

Last updated: Tue Aug 25 13:30:13 EDT 2009

CVE Publication rate: 17.47

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Vulnerability Workload Index: 10.29

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NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

NIST Security Configuration Checklists - CSD

National Cyber-Alert System

Vulnerability Summary for CVE-2007-5501

Original release date:11/15/2007

Last revised:02/20/2009

Source: US-CERT/NIST

Overview

The tcp_sacktag_write_queue function in net/ipv4/tcp_input.c in Linux kernel 2.6.21 through 2.6.23.7, and 2.6.24-rc through 2.6.24-rc2, allows remote attackers to cause a denial of service (crash) via crafted ACK responses that trigger a NULL pointer dereference.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)

Impact Subscore: 2.9

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 serviceUnknown

Vendor Statments (disclaimer)

Official Statement from Red Hat (11/20/2007): 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: BID

Name: 26474

Type: Patch Information

Hyperlink:http://www.securityfocus.com/bid/26474

External Source: VUPEN

Name: ADV-2007-3902

Type: Advisory; Patch Information

Hyperlink:http://www.frsirt.com/english/advisories/2007/3902

External Source: FEDORA

Name: FEDORA-2007-759

Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00302.html

External Source: FEDORA