Description
chan_sip in Asterisk Open Source 1.8.x, 11.x before 11.21.1, 12.x, and 13.x before 13.7.1 and Certified Asterisk 1.8.28, 11.6 before 11.6-cert12, and 13.1 before 13.1-cert3, when the timert1 sip.conf configuration is set to a value greater than 1245, allows remote attackers to cause a denial of service (file descriptor consumption) via vectors related to large retransmit timeout values.
References (6)
Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/82651
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1034930
Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177409.html
Third Party Advisory vendor-advisory
x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177422.html
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2016/dsa-3700
Exploit, Patch, Vendor Advisory x_refsource_confirm
http://downloads.asterisk.org/pub/security/AST-2016-002.html
Scores
CVSS v3
5.9
EPSS
0.0497
EPSS Percentile
91.1%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-191
Status
published
Products (24)
digium/asterisk
1.8.0 (10 CPE variants)
digium/asterisk
1.8.1 (2 CPE variants)
digium/asterisk
1.8.1.1
digium/asterisk
1.8.1.2
digium/asterisk
1.8.2
digium/asterisk
1.8.2.1
digium/asterisk
1.8.2.2
digium/asterisk
1.8.2.3
digium/asterisk
1.8.2.4
digium/asterisk
1.8.3 (4 CPE variants)
... and 14 more
Published
Feb 22, 2016
Tracked Since
Feb 18, 2026