Home/CVE/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-
CVE

CVE-2009-0871

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-

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.

LOW · CVSS 3.5 EPSS 0.02947
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

1
digium asteriskall versions
▣

Scoring & Timeline

3.5
LOW · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:S/C:N/I:N/A:P
Published to NVD11 Mar 2009 · 02:19 PM
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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.htmlPatchVendor Advisory
http://osvdb.org/52568
http://secunia.com/advisories/34229Vendor Advisory
http://www.securityfocus.com/archive/1/501656/100/0/threaded
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