CVE-2011-4598

The handle_request_info function in channels/chan_sip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted sequence of SIP requests.

Published Bysecalert@redhat.com

Published DateDec 15, 2011, 03:57

Weakness Type (CWE):CWE-200

CVSS Metrics

Base Score

4.3

Vector String

AV:N/AC:M/Au:N/C:N/I:N/A:P

Base Severity

Version

2.0

Attack Vector (AV)

Attack Complexity (AC)

Privileges Required (PR)

User Interaction (UI)

Scope (S)

Confidentiality (C)

NONE

Integrity (I)

NONE

Availability (A)

PARTIAL

References

http://downloads.asterisk.org/pub/security/AST-2011-014.html
http://openwall.com/lists/oss-security/2011/12/09/3
http://openwall.com/lists/oss-security/2011/12/09/4
http://osvdb.org/77598
http://secunia.com/advisories/47273
http://www.debian.org/security/2011/dsa-2367

Weakness Type (CWE):CWE-200

CVSS Metrics

Base Score

4.3

Vector String

AV:N/AC:M/Au:N/C:N/I:N/A:P

Base Severity

Version

2.0

Attack Vector (AV)

Attack Complexity (AC)

Privileges Required (PR)

User Interaction (UI)

Scope (S)

Confidentiality (C)

NONE

Integrity (I)

NONE

Availability (A)

PARTIAL