Vulnerability Monitor

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CVE-2009-4420

Buffer overflow in the bd daemon in F5 Networks BIG-IP Application Security Manager (ASM) 9.4.4 through 9.4.7 and 10.0.0 through 10.0.1, and Protocol Security Manager (PSM) 9.4.5 through 9.4.7 and 10.0.0 through 10.0.1, allows remote attackers to cause a denial of service (crash) via unknown vectors. NOTE: some of these details are obtained from third party information.

Security Impact Summary

CVE-2009-4420 is a security vulnerability that . Impacting 3 products from f5, from f5, from f5 organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2009-12-24T17:30:00.280

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	f5	big-ip_protocol_security_module	10.0.0	Yes
Hardware	f5	big-ip_application_security_manager	9.4.4	Yes
Hardware	f5	big-ip_application_security_manager	9.4.5	Yes
Hardware	f5	big-ip_application_security_manager	9.4.6	Yes
Hardware	f5	big-ip_application_security_manager	9.4.7	Yes
Hardware	f5	big-ip_application_security_manager	10.0.0	Yes
Hardware	f5	big-ip_application_security_manager	10.0.1	Yes
Hardware	f5	big-ip_protocol_security_manager	9.4.5	Yes
Hardware	f5	big-ip_protocol_security_manager	9.4.6	Yes
Hardware	f5	big-ip_protocol_security_manager	9.4.7	Yes
Hardware	f5	big-ip_protocol_security_manager	10.0.1	Yes

References

http://osvdb.org/61297 ([email protected])
http://secunia.com/advisories/37805 Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/37452 ([email protected])
http://www.securitytracker.com/id?1023386 ([email protected])
http://www.vupen.com/english/advisories/2009/3627 Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/55005 ([email protected])
https://support.f5.com/kb/en-us/solutions/public/10000/400/sol10417.html ([email protected])
http://osvdb.org/61297 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/37805 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/37452 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1023386 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/3627 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/55005 (af854a3a-2127-422b-91ae-364da2661108)
https://support.f5.com/kb/en-us/solutions/public/10000/400/sol10417.html (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For f5's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.