What is CVE-2009-4005?

CVE-2009-4005 is a High severity Linux kernel vulnerability with a CVSS score of 7.2 out of 10, classified as a Buffer Overflow flaw (CWE-119). CVE-2009-4005 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2009-4005?

CVE-2009-4005 has a CVSS score of 7.2 out of 10, rated High severity. The vector string is AV:L/AC:L/Au:N/C:C/I:C/A:C.

Is there a patch available for CVE-2009-4005?

No patch is currently available for CVE-2009-4005. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2009-4005 actively exploited?

CVE-2009-4005 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2009-4005

High

The collect_rx_frame function in drivers/isdn/hisax/hfc_usb.c in the Linux kernel before 2.6.32-rc7 allows attackers to have an unspecified impact via a crafted HDLC packet that arrives over ISDN and triggers a buffer under-read.

Package Linux Kernel

Published 2009-11-20

Last modified 2026-04-23

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

7.2

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

Availability

Vector string

AV:L/AC:L/Au:N/C:C/I:C/A:C

Weakness type

CWE-119

CVE-2009-4005 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2009-4005 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
Secunia
http://secunia.com/advisories/37720
Secunia
http://secunia.com/advisories/37909
Secunia
http://secunia.com/advisories/38017
Secunia
http://secunia.com/advisories/38276
Debian Security
http://www.debian.org/security/2010/dsa-2005
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc7

Vendor Advisory
Mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2010:030
Ubuntu Security
http://www.ubuntu.com/usn/usn-864-1
Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/54310
Oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11155
Red Hat
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=286e633ef0ff5bb63c07b4516665da8004966fec
Patch
Kernel patch commit
http://www.securityfocus.com/bid/37036
Patch
Kernel patch commit
http://www.vupen.com/english/advisories/2009/3267
Patch

Details

CVE ID CVE-2009-4005

Severity High

CVSS score 7.2 / 10

CVSS version 2.0

Published 2009-11-20

Modified 2026-04-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2009-4005?

CVE-2009-4005 is a High severity Linux kernel vulnerability with a CVSS score of 7.2 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2009-4005 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2009-4005?

CVE-2009-4005 has a CVSS score of 7.2 out of 10, rated High severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:C/I:C/A:C.
Is there a patch available for CVE-2009-4005?

No patch is currently available for CVE-2009-4005. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2009-4005 actively exploited?

No — CVE-2009-4005 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →