Vulnerability Monitor

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CVE-2008-3263


The IAX2 protocol implementation in Asterisk Open Source 1.0.x, 1.2.x before 1.2.30, and 1.4.x before 1.4.21.2; Business Edition A.x.x, B.x.x before B.2.5.4, and C.x.x before C.1.10.3; AsteriskNOW; Appliance Developer Kit 0.x.x; and s800i 1.0.x before 1.2.0.1 allows remote attackers to cause a denial of service (call-number exhaustion and CPU consumption) by quickly sending a large number of IAX2 (IAX) POKE requests.


Security Impact Summary

CVE-2008-3263 is a security vulnerability that . Impacting 1 product from asterisk organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2008, 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

2008-07-22T23:41:00.000

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-399

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application asterisk asterisk 0.1.0 Yes
Application asterisk asterisk 0.1.1 Yes
Application asterisk asterisk 0.1.2 Yes
Application asterisk asterisk 0.1.3 Yes
Application asterisk asterisk 0.1.4 Yes
Application asterisk asterisk 0.1.5 Yes
Application asterisk asterisk 0.1.6 Yes
Application asterisk asterisk 0.1.7 Yes
Application asterisk asterisk 0.1.8 Yes
Application asterisk asterisk 0.1.9 Yes
Application asterisk asterisk 0.1.9_1 Yes
Application asterisk asterisk 0.1.10 Yes
Application asterisk asterisk 0.1.11 Yes
Application asterisk asterisk 0.1.12 Yes
Application asterisk asterisk 0.2 Yes
Application asterisk asterisk 0.3 Yes
Application asterisk asterisk 0.4 Yes
Application asterisk asterisk 0.5.0 Yes
Application asterisk asterisk 0.7.0 Yes
Application asterisk asterisk 0.7.1 Yes
Application asterisk asterisk 0.7.2 Yes
Application asterisk asterisk 0.9.0 Yes
Application asterisk asterisk 1.0 Yes
Application asterisk asterisk 1.0 Yes
Application asterisk asterisk 1.0.1 Yes
Application asterisk asterisk 1.0.2 Yes
Application asterisk asterisk 1.0.3 Yes
Application asterisk asterisk 1.0.4 Yes
Application asterisk asterisk 1.0.5 Yes
Application asterisk asterisk 1.0.6 Yes
Application asterisk asterisk 1.0.7 Yes
Application asterisk asterisk 1.0.8 Yes
Application asterisk asterisk 1.0.9 Yes
Application asterisk asterisk 1.0.10 Yes
Application asterisk asterisk 1.0.11 Yes
Application asterisk asterisk 1.0.11.1 Yes
Application asterisk asterisk 1.0.12 Yes
Application asterisk asterisk 1.2.0_beta1 Yes
Application asterisk asterisk 1.2.0_beta2 Yes
Application asterisk asterisk 1.2.1 Yes
Application asterisk asterisk 1.2.2 Yes
Application asterisk asterisk 1.2.3 Yes
Application asterisk asterisk 1.2.4 Yes
Application asterisk asterisk 1.2.5 Yes
Application asterisk asterisk 1.2.6 Yes
Application asterisk asterisk 1.2.7 Yes
Application asterisk asterisk 1.2.7.1 Yes
Application asterisk asterisk 1.2.8 Yes
Application asterisk asterisk 1.2.9 Yes
Application asterisk asterisk 1.2.9.1 Yes
Application asterisk asterisk 1.2.10 Yes
Application asterisk asterisk 1.2.11 Yes
Application asterisk asterisk 1.2.12 Yes
Application asterisk asterisk 1.2.13 Yes
Application asterisk asterisk 1.2.14 Yes
Application asterisk asterisk 1.2.15 Yes
Application asterisk asterisk 1.2.16 Yes
Application asterisk asterisk 1.2.17 Yes
Application asterisk asterisk 1.2.18 Yes
Application asterisk asterisk 1.2.19 Yes
Application asterisk asterisk 1.2.20 Yes
Application asterisk asterisk 1.2.21 Yes
Application asterisk asterisk 1.2.22 Yes
Application asterisk asterisk 1.2.23 Yes
Application asterisk asterisk 1.2.24 Yes
Application asterisk asterisk 1.2.25 Yes
Application asterisk asterisk 1.2.26 Yes
Application asterisk asterisk 1.2.26.1 Yes
Application asterisk asterisk 1.2.26.2 Yes
Application asterisk asterisk 1.2.27 Yes
Application asterisk asterisk 1.2.28 Yes
Application asterisk asterisk 1.2.28.1 Yes
Application asterisk asterisk 1.2.29 Yes
Application asterisk asterisk 1.2.30 Yes
Application asterisk asterisk 1.4.1 Yes
Application asterisk asterisk 1.4.2 Yes
Application asterisk asterisk 1.4.3 Yes
Application asterisk asterisk 1.4.4 Yes
Application asterisk asterisk 1.4.4_2007-04-27 Yes
Application asterisk asterisk 1.4.5 Yes
Application asterisk asterisk 1.4.6 Yes
Application asterisk asterisk 1.4.7 Yes
Application asterisk asterisk 1.4.8 Yes
Application asterisk asterisk 1.4.9 Yes
Application asterisk asterisk 1.4.10 Yes
Application asterisk asterisk 1.4.11 Yes
Application asterisk asterisk 1.4.12 Yes
Application asterisk asterisk 1.4.13 Yes
Application asterisk asterisk 1.4.14 Yes
Application asterisk asterisk 1.4.15 Yes
Application asterisk asterisk 1.4.16 Yes
Application asterisk asterisk 1.4.16.1 Yes
Application asterisk asterisk 1.4.16.2 Yes
Application asterisk asterisk 1.4.17 Yes
Application asterisk asterisk 1.4.18 Yes
Application asterisk asterisk 1.4.18.1 Yes
Application asterisk asterisk 1.4.19 Yes
Application asterisk asterisk 1.4_beta Yes
Application asterisk asterisk 1.4_revision_95946 Yes
Application asterisk asterisk 1.6 Yes
Application asterisk asterisk a Yes
Application asterisk asterisk a Yes
Application asterisk asterisk b.1.3.2 Yes
Application asterisk asterisk b.1.3.2 Yes
Application asterisk asterisk b.1.3.3 Yes
Application asterisk asterisk b.1.3.3 Yes
Application asterisk asterisk b.2.2.0 Yes
Application asterisk asterisk b.2.2.0 Yes

References

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 asterisk'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.