| Name | CVE-2016-2316 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3700-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| asterisk (PTS) | buster | 1:16.2.1~dfsg-1+deb10u2 | fixed |
| buster (security) | 1:16.28.0~dfsg-0+deb10u4 | fixed | |
| bullseye | 1:16.28.0~dfsg-0+deb11u3 | fixed | |
| bullseye (security) | 1:16.28.0~dfsg-0+deb11u4 | fixed | |
| sid | 1:20.6.0~dfsg+~cs6.13.40431414-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| asterisk | source | squeeze | (unfixed) | end-of-life | ||
| asterisk | source | jessie | 1:11.13.1~dfsg-2+deb8u1 | DSA-3700-1 | ||
| asterisk | source | (unstable) | 1:13.7.2~dfsg-1 |
[wheezy] - asterisk <no-dsa> (Minor issue)
[squeeze] - asterisk <end-of-life> (Not supported in Squeeze LTS)
http://downloads.asterisk.org/pub/security/AST-2016-002.html
https://issues.asterisk.org/jira/browse/ASTERISK-25397
issue introduced in ~2008 with the SIP timer support implementation (https://issues.asterisk.org/jira/browse/ASTERISK-4257 https://issues.asterisk.org/jira/browse/ASTERISK-5187), so squeeze also vulnerable
patch for jessie / 11: https://code.asterisk.org/code/changelog/asterisk?cs=882e85388295eac8eebd0b82e71a9af0a769b41f
all versions vulnerable, backport required for wheezy