Vulnerability in Digium Asterisk
CVE-2007-4103
The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23, 1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when configured to allow unauthenticated calls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of calls that do not complete a 3-way handshake, which causes an ast_channel to be allocated but not released.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.059 (93.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.059 · newest: 0.059 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.securityfocus.com/bid/24950 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- security.gentoo.org/glsa/glsa-200802-11.xml (vendor-advisory, Third Party Advisory)
- secunia.com/advisories/29051 (Broken Link, third-party-advisory)
- bugs.gentoo.org/show_bug.cgi (Patch, Issue Tracking)
- www.securitytracker.com/id (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- www.vupen.com/english/advisories/2007/2701 (vdb-entry, Broken Link)
- www.securityfocus.com/archive/1/475069/100/0/threaded (mailing-list, VDB Entry, Third Party Advisory, Broken Link)
- securityreason.com/securityalert/2960 (Broken Link, third-party-advisory)
- ftp.digium.com/pub/asa/ASA-2007-018.pdf (Patch, Broken Link)
- osvdb.org/38197 (vdb-entry, Broken Link)
Frequently asked questions
- What is CVE-2007-4103?
- CVE-2007-4103 is a high-severity vulnerability in Digium Asterisk, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2007-07-31.
- How severe is CVE-2007-4103?
- High severity. CVSS v3 base score is 7.5 out of 10.