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CVE-2009-4272 Details

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

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

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

see all 24 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-667	Improper Locking	[email protected]

Affected Products

Product	Versions
linux linux kernel	2.6.18 -
CPE cpe:2.3:o:linux:linux_kernel:2.6.18:-:::::: Remediation No remediation found in references.
redhat enterprise linux	5.0
CPE cpe:2.3:o:redhat:enterprise_linux:5.0:::::::* Remediation No remediation found in references.
redhat virtualization	5.0
CPE cpe:2.3:a:redhat:virtualization:5.0:::::::* Remediation No remediation found in references.
redhat enterprise linux desktop	5.0
CPE cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:::::::* Remediation No remediation found in references.
redhat enterprise linux eus	5.4
CPE cpe:2.3:o:redhat:enterprise_linux_eus:5.4:::::::* Remediation No remediation found in references.
redhat enterprise linux server	5.0
CPE cpe:2.3:o:redhat:enterprise_linux_server:5.0:::::::* Remediation No remediation found in references.
redhat enterprise linux workstation	5.0
CPE cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:::::::* Remediation No remediation found in references.

Change History

11 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 29, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 15, 2024	Modified Analysis	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Feb 13, 2023	CVE Modified	[email protected]
Feb 2, 2023	CVE Modified	[email protected]
Sep 19, 2017	CVE Modified	[email protected]
Aug 17, 2017	CVE Modified	[email protected]
Jan 28, 2010	Initial Analysis	[email protected]

CVE-2009-4272 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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