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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2009-4272 Detail

Description

A certain Red Hat patch for net/ipv4/route.c in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 allows remote attackers to cause a denial of service (deadlock) via crafted packets that force collisions in the IPv4 routing hash table, and trigger a routing "emergency" in which a hash chain is too long. NOTE: this is related to an issue in the Linux kernel before 2.6.31, when the kernel routing cache is disabled, involving an uninitialized pointer and a panic.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Vendor Statements (disclaimer)

Official Statement from Red Hat (01/28/2010)

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and Red Hat Enterprise MRG. Shipped kernels do not include upstream commits c6153b5b and 1080d709 that introduced the problem. It was addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0046.html

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=73e42897e8e5619eacb787d2ce69be12f47cfc21 CVE, Inc., Red Hat Broken Link 
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b6280b47a7a42970d098a3059f4ebe7e55e90d8d CVE, Inc., Red Hat Broken Link 
http://support.avaya.com/css/P8/documents/100073666 CVE, Inc., Red Hat Third Party Advisory 
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31 CVE, Inc., Red Hat Broken Link 
http://www.openwall.com/lists/oss-security/2010/01/20/1 CVE, Inc., Red Hat Mailing List 
http://www.openwall.com/lists/oss-security/2010/01/20/6 CVE, Inc., Red Hat Mailing List 
https://bugzilla.redhat.com/show_bug.cgi?id=545411 CVE, Inc., Red Hat Exploit  Issue Tracking 
https://exchange.xforce.ibmcloud.com/vulnerabilities/55808 CVE, Inc., Red Hat Third Party Advisory  VDB Entry 
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11167 CVE, Inc., Red Hat Broken Link 
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7026 CVE, Inc., Red Hat Broken Link 
https://rhn.redhat.com/errata/RHSA-2010-0046.html CVE, Inc., Red Hat Vendor Advisory 
https://rhn.redhat.com/errata/RHSA-2010-0095.html CVE, Inc., Red Hat Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-667 Improper Locking cwe source acceptance level NIST  

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Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-4272
NVD Published Date:
01/27/2010
NVD Last Modified:
04/10/2025
Source:
Red Hat, Inc.