7.8
HIGH
CVE-2009-2726
Asterisk NULL Pointer Vulnerability
Description

The SIP channel driver in Asterisk Open Source 1.2.x before 1.2.34, 1.4.x before 1.4.26.1, 1.6.0.x before 1.6.0.12, and 1.6.1.x before 1.6.1.4; Asterisk Business Edition A.x.x, B.x.x before B.2.5.9, C.2.x before C.2.4.1, and C.3.x before C.3.1; and Asterisk Appliance s800i 1.2.x before 1.3.0.3 does not use a maximum width when invoking sscanf style functions, which allows remote attackers to cause a denial of service (stack memory consumption) via SIP packets containing large sequences of ASCII decimal characters, as demonstrated via vectors related to (1) the CSeq value in a SIP header, (2) large Content-Length value, and (3) SDP.

INFO

Published Date :

Aug. 12, 2009, 10:30 a.m.

Last Modified :

Nov. 21, 2024, 1:05 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

6.9

Exploitability Score :

10.0
Affected Products

The following products are affected by CVE-2009-2726 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Digium asterisk
2 Digium s800i
3 Digium s800i_firmware
: Total Affected Vendor : 1 | Products : 3
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2009-2726.

URL Resource
http://downloads.digium.com/pub/security/AST-2009-005.html Product
http://labs.mudynamics.com/advisories/MU-200908-01.txt Broken Link
http://secunia.com/advisories/36227 Broken Link Vendor Advisory
http://www.securityfocus.com/archive/1/505669/100/0/threaded Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/36015 Broken Link Exploit Third Party Advisory VDB Entry
http://www.securitytracker.com/id?1022705 Broken Link Third Party Advisory VDB Entry
http://www.vupen.com/english/advisories/2009/2229 Broken Link Vendor Advisory
http://downloads.digium.com/pub/security/AST-2009-005.html Product
http://labs.mudynamics.com/advisories/MU-200908-01.txt Broken Link
http://secunia.com/advisories/36227 Broken Link Vendor Advisory
http://www.securityfocus.com/archive/1/505669/100/0/threaded Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/36015 Broken Link Exploit Third Party Advisory VDB Entry
http://www.securitytracker.com/id?1022705 Broken Link Third Party Advisory VDB Entry
http://www.vupen.com/english/advisories/2009/2229 Broken Link Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2009-2726 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2009-2726 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Feb. 15, 2024

    Action Type Old Value New Value
    Changed Reference Type http://downloads.digium.com/pub/security/AST-2009-005.html No Types Assigned http://downloads.digium.com/pub/security/AST-2009-005.html Product
    Changed Reference Type http://labs.mudynamics.com/advisories/MU-200908-01.txt No Types Assigned http://labs.mudynamics.com/advisories/MU-200908-01.txt Broken Link
    Changed Reference Type http://secunia.com/advisories/36227 Vendor Advisory http://secunia.com/advisories/36227 Broken Link, Vendor Advisory
    Changed Reference Type http://www.securityfocus.com/archive/1/505669/100/0/threaded No Types Assigned http://www.securityfocus.com/archive/1/505669/100/0/threaded Broken Link, Third Party Advisory, VDB Entry
    Changed Reference Type http://www.securityfocus.com/bid/36015 Exploit http://www.securityfocus.com/bid/36015 Broken Link, Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type http://www.securitytracker.com/id?1022705 No Types Assigned http://www.securitytracker.com/id?1022705 Broken Link, Third Party Advisory, VDB Entry
    Changed Reference Type http://www.vupen.com/english/advisories/2009/2229 Vendor Advisory http://www.vupen.com/english/advisories/2009/2229 Broken Link, Vendor Advisory
    Removed CWE NIST CWE-399
    Added CWE NIST CWE-770
    Removed CPE Configuration OR *cpe:2.3:a:asterisk:business_edition:b.1.3.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:business_edition:c.2.3:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:business_edition:c.3.0:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.0:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.0:beta1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.0:beta2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.0:rc1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.0:rc2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.2:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.3:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.3:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.4:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.4:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.5:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.5:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.6:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.6:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.7:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.7:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.7.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.7.1:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.8:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.8:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.9.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.9.1:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.10:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.10:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.11:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.11:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.12:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.12:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.12.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.12.1:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.13:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.13:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.14:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.15:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.15:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.16:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.16:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.17:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.17:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.18:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.18:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.19:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.19:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.20:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.20:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.21:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.21:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.21.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.21.1:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.22:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.22:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.23:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.23:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.24:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.24:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.25:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.25:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.26:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.26:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.26.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.26.1:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.26.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.26.2:netsec:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.27:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.28:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.29:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.30:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.30.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.30.3:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.2.30.4:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.0:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.0:beta2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.0:beta3:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.0:beta4:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.3:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.4:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.5:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.6:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.7:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.7.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.8:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.9:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.10:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.10.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.11:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.12:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.12.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.13:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.14:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.15:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.16:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.16.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.16.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.17:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.18:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.18.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19:rc-2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19:rc1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19:rc2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19:rc3:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19:rc4:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.19_rc3:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.20:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.20:rc1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.20:rc2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.20:rc3:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.21:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.21:rc1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.21:rc2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.21.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.21.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.22:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.22:rc3:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.22:rc4:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.22.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.22.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.23:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.23:rc1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.23:rc2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4.23:rc3:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.4beta:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta2:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta3:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta4:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta5:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta7:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta7.1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta8:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:beta9:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:rc4:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:rc5:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0:rc6:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0.2:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0.3:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.0.3:rc1:*:*:*:*:*:* *cpe:2.3:a:asterisk:open_source:1.6.1:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:1.4.22:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:1.4.23:*:*:*:*:*:*:* *cpe:2.3:a:asterisk:opensource:1.4.23.1:*:*:*:*:*:*:* *cpe:2.3:h:asterisk:appliance_s800i:1.3.0.2:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:digium:asterisk:*:*:business:*:*:*:*:* versions up to (excluding) b.2.5.9 *cpe:2.3:a:digium:asterisk:*:*:business:*:*:*:*:* versions from (including) c.2.0 up to (including) c.2.4.1 *cpe:2.3:a:digium:asterisk:*:*:business:*:*:*:*:* versions from (including) c.3.0 up to (excluding) c.3.1
    Added CPE Configuration AND OR *cpe:2.3:o:digium:s800i_firmware:*:*:*:*:*:*:*:* versions from (including) 1.2.0 up to (excluding) 1.3.0.3 OR cpe:2.3:h:digium:s800i:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 1.2.0 up to (excluding) 1.2.34 *cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 1.4.0 up to (excluding) 1.4.26.1 *cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 1.6.0 up to (excluding) 1.6.0.12 *cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* versions from (including) 1.6.1 up to (excluding) 1.6.1.4
  • CVE Modified by [email protected]

    Oct. 10, 2018

    Action Type Old Value New Value
    Removed Reference http://www.securityfocus.com/archive/1/archive/1/505669/100/0/threaded [No Types Assigned]
    Added Reference http://www.securityfocus.com/archive/1/505669/100/0/threaded [No Types Assigned]
  • Initial Analysis by [email protected]

    Aug. 12, 2009

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2009-2726 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2009-2726 weaknesses.

CAPEC-125: Flooding Flooding CAPEC-130: Excessive Allocation Excessive Allocation CAPEC-147: XML Ping of the Death XML Ping of the Death CAPEC-197: Exponential Data Expansion Exponential Data Expansion CAPEC-229: Serialized Data Parameter Blowup Serialized Data Parameter Blowup CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-469: HTTP DoS HTTP DoS CAPEC-482: TCP Flood TCP Flood CAPEC-486: UDP Flood UDP Flood CAPEC-487: ICMP Flood ICMP Flood CAPEC-488: HTTP Flood HTTP Flood CAPEC-489: SSL Flood SSL Flood CAPEC-490: Amplification Amplification CAPEC-491: Quadratic Data Expansion Quadratic Data Expansion CAPEC-493: SOAP Array Blowup SOAP Array Blowup CAPEC-494: TCP Fragmentation TCP Fragmentation CAPEC-495: UDP Fragmentation UDP Fragmentation CAPEC-496: ICMP Fragmentation ICMP Fragmentation CAPEC-528: XML Flood XML Flood
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

3.62 }} -27.53%

score

0.91341

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability
: