What’s Vulnerable › Vulnerabilities

CVE-2009-2346

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-09-08 · updated 2026-06-16
• Weakness: CWE-119

Description

The IAX2 protocol implementation in Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.2, 1.6.0.x before 1.6.0.15, and 1.6.1.x before 1.6.1.6; Business Edition B.x.x before B.2.5.10, C.2.x before C.2.4.3, and C.3.x before C.3.1.1; and s800i 1.3.x before 1.3.0.3 allows remote attackers to cause a denial of service (call-number exhaustion) by initiating many IAX2 message exchanges, a related issue to CVE-2008-3263.

Affected products

• asterisk Appliance S800I: 1.3, 1.3.0.2
• Asterisk: b.1.3.2, b.1.3.3, b.2.2.0, b.2.2.1, b.2.3.1, b.2.3.2 (+25)
• asterisk Open Source: 1.2.0, 1.2.0-beta1, 1.2.0-beta2, 1.2.0-rc1, 1.2.0-rc2, 1.2.1 (+146)
• asterisk Opensource: 1.4.23.2, 1.4.24, 1.4.24.1, 1.4.26, 1.4.26.1
• asterisk: 1.6.1, 1.6.1.4

References

• http://downloads.asterisk.org/pub/security/AST-2009-006.html
• http://secunia.com/advisories/36593
• http://securitytracker.com/id?1022819
• http://www.securityfocus.com/archive/1/506257/100/0/threaded
• http://www.securityfocus.com/bid/36275
• http://downloads.asterisk.org/pub/security/AST-2009-006.html
• http://secunia.com/advisories/36593
• http://securitytracker.com/id?1022819
• http://www.securityfocus.com/archive/1/506257/100/0/threaded
• http://www.securityfocus.com/bid/36275

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