Improper input validation in Digium Asterisk
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-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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 3.5 (Low). Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.026 (84.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Digium Asterisk — versions 1.4.22, 1.4.23, 1.4.23.1
Weakness classification (CWE)
References
- osvdb.org/52568 (vdb-entry)
- www.securityfocus.com/bid/34070 (Patch, vdb-entry)
- www.securitytracker.com/id (vdb-entry)
- www.securityfocus.com/archive/1/501656/100/0/threaded (mailing-list)
- bugs.digium.com/view.php
- bugs.digium.com/view.php
- downloads.digium.com/pub/security/AST-2009-002.html (Patch, Vendor Advisory)
- www.vupen.com/english/advisories/2009/0667 (vdb-entry)
- secunia.com/advisories/34229 (Vendor Advisory, third-party-advisory)