CVE-2009-0871
Status: ModifiedLow (3.5)—
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.
CVSS
- Version: 2.0
- Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P
- Base score: 3.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 2.57%
- Percentile among all scored CVEs: 85
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- CWE-20
References
- http://bugs.digium.com/view.php?id=13547
- http://bugs.digium.com/view.php?id=14417
- http://downloads.digium.com/pub/security/AST-2009-002.html
- http://osvdb.org/52568
- http://secunia.com/advisories/34229
- http://www.securityfocus.com/archive/1/501656/100/0/threaded
- http://www.securityfocus.com/bid/34070
- http://www.securitytracker.com/id?1021834
- http://www.vupen.com/english/advisories/2009/0667
- http://bugs.digium.com/view.php?id=13547
- http://bugs.digium.com/view.php?id=14417
- http://downloads.digium.com/pub/security/AST-2009-002.html
- http://osvdb.org/52568
- http://secunia.com/advisories/34229
- http://www.securityfocus.com/archive/1/501656/100/0/threaded
- http://www.securityfocus.com/bid/34070
- http://www.securitytracker.com/id?1021834
- http://www.vupen.com/english/advisories/2009/0667
Raw JSON (NVD)
Show
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