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CVE-2016-2316

Published: 22 February 2016

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.

Priority

Medium

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
asterisk
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable

cosmic Not vulnerable

disco Not vulnerable

eoan Not vulnerable

focal Not vulnerable

groovy Not vulnerable

hirsute Not vulnerable

impish Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

mantic Not vulnerable

precise Ignored
(end of life)
trusty Does not exist
(trusty was needed)
upstream
Released (11.21.1, 13.7.1)
wily Ignored
(end of life)
xenial Needed

yakkety Ignored
(end of life)
zesty Ignored
(end of life)
Patches:
upstream: http://downloads.asterisk.org/pub/security/AST-2016-002-1.8.diff
upstream: http://downloads.asterisk.org/pub/security/AST-2016-002-11.diff
upstream: http://downloads.asterisk.org/pub/security/AST-2016-002-12.diff
upstream: http://downloads.asterisk.org/pub/security/AST-2016-002-13.diff

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H