Vulnerability Name:

CVE-2009-2651 (CCN-52046)

Assigned:2009-07-27
Published:2009-07-27
Updated:2017-08-17
Summary:main/rtp.c in Asterisk Open Source 1.6.1 before 1.6.1.2 allows remote attackers to cause a denial of service (crash) via an RTP text frame without a certain delimiter, which triggers a NULL pointer dereference and the subsequent calculation of an invalid pointer.
CVSS v3 Severity:7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
5.8 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
CWE-399
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2009-2651

Source: CCN
Type: AST-2009-004
Remote Crash Vulnerability in RTP stack

Source: CONFIRM
Type: Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2009-004.html

Source: MISC
Type: Exploit
http://downloads.digium.com/pub/security/AST-2009-004-1.6.1.diff.txt

Source: OSVDB
Type: UNKNOWN
56571

Source: CCN
Type: SA36039
Asterisk RTP Text Frames Denial of Service Vulnerability

Source: SECUNIA
Type: Vendor Advisory
36039

Source: CCN
Type: SECTRACK ID: 1022608
Asterisk RTP Frame Processing Bug Lets Remote Users Deny Service

Source: CCN
Type: OSVDB ID: 56571
Asterisk main/rtp.c RTP Text Frames Handling Remote DoS

Source: BID
Type: UNKNOWN
35837

Source: CCN
Type: BID-35837
Asterisk RTP Text Frames Processing Remote Denial of Service Vulnerability

Source: SECTRACK
Type: UNKNOWN
1022608

Source: VUPEN
Type: Patch, Vendor Advisory
ADV-2009-2067

Source: XF
Type: UNKNOWN
asterisk-rtp-dos(52046)

Source: XF
Type: UNKNOWN
asterisk-rtp-dos(52046)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:digium:asterisk:1.6.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    digium asterisk 1.6.1