CVE-2009-0871
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
6 Medium
AI Score
Confidence
High
0.023 Low
EPSS
Percentile
89.8%
The SIP channel driver in Asterisk Open Source 1.4.22, 1.4.23, and 1.4.23.1; 1.6.0 before 1.6.0.6; 1.6.1 before 1.6.1.0-rc2; and Asterisk Business Edition C.2.3, with the pedantic option enabled, allows remote authenticated users to cause a denial of service (crash) via a SIP INVITE request without any headers, which triggers a NULL pointer dereference in the (1) sip_uri_headers_cmp and (2) sip_uri_params_cmp functions.
Affected configurations
References
bugs.digium.com/view.php?id=13547
bugs.digium.com/view.php?id=14417
downloads.digium.com/pub/security/AST-2009-002.html
osvdb.org/52568
secunia.com/advisories/34229
www.securityfocus.com/archive/1/501656/100/0/threaded
www.securityfocus.com/bid/34070
www.securitytracker.com/id?1021834
www.vupen.com/english/advisories/2009/0667
Related
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
6 Medium
AI Score
Confidence
High
0.023 Low
EPSS
Percentile
89.8%