CVE-2016-7551
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
chain_sip in Asterisk Open Source 11.x before 11.23.1 and 13.x 13.11.1 and Certified Asterisk 11.6 before 11.6-cert15 and 13.8 before 13.8-cert3 allows remote attackers to cause a denial of service (port exhaustion).
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bullseye | fixed | 1:13.11.2~dfsg-1 |
| debian | sid | fixed | 1:13.11.2~dfsg-1 |
| debian | 8.0 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| digium | asterisk | 11.0.0 | |
| digium | asterisk | 11.0.1 | |
| digium | asterisk | 11.0.2 | |
| digium | asterisk | 11.1.0 | |
| digium | asterisk | 11.1.1 | |
| digium | asterisk | 11.1.2 | |
| digium | asterisk | 11.2.0 | |
| digium | asterisk | 11.2.1 | |
| digium | asterisk | 11.2.2 | |
| digium | asterisk | 11.3.0 | |
| digium | asterisk | 11.4.0 | |
| digium | asterisk | 11.5.0 | |
| digium | asterisk | 11.5.1 | |
| digium | asterisk | 11.6.0 | |
| digium | asterisk | 11.6.1 | |
| digium | asterisk | 11.7.0 | |
| digium | asterisk | 11.8.0 | |
| digium | asterisk | 11.8.1 | |
| digium | asterisk | 11.9.0 | |
| digium | asterisk | 11.10.0 | |
| digium | asterisk | 11.10.1 | |
| digium | asterisk | 11.10.2 | |
| digium | asterisk | 11.11.0 | |
| digium | asterisk | 11.12.0 | |
| digium | asterisk | 11.12.1 | |
| digium | asterisk | 11.13.0 | |
| digium | asterisk | 11.13.1 | |
| digium | asterisk | 11.14.0 | |
| digium | asterisk | 11.14.1 | |
| digium | asterisk | 11.14.2 | |
| digium | asterisk | 11.15.0 | |
| digium | asterisk | 11.15.1 | |
| digium | asterisk | 11.16.0 | |
| digium | asterisk | 11.17.0 | |
| digium | asterisk | 11.17.1 | |
| digium | asterisk | 11.18.0 | |
| digium | asterisk | 11.19.0 | |
| digium | asterisk | 11.20.0 | |
| digium | asterisk | 11.21.0 | |
| digium | asterisk | 11.21.1 | |
| digium | asterisk | 11.21.2 | |
| digium | asterisk | 11.22.0 | |
| digium | asterisk | 11.23.0 | |
| digium | asterisk | 13.0.0 | |
| digium | asterisk | 13.0.1 | |
| digium | asterisk | 13.0.2 | |
| digium | asterisk | 13.1.0 | |
| digium | asterisk | 13.1.1 | |
| digium | asterisk | 13.2.0 | |
| digium | asterisk | 13.2.1 | |
| digium | asterisk | 13.3.0 | |
| digium | asterisk | 13.3.1 | |
| digium | asterisk | 13.3.2 | |
| digium | asterisk | 13.4.0 | |
| digium | asterisk | 13.5.0 | |
| digium | asterisk | 13.6.0 | |
| digium | asterisk | 13.7.0 | |
| digium | asterisk | 13.7.1 | |
| digium | asterisk | 13.7.2 | |
| digium | asterisk | 13.8.0 | |
| digium | asterisk | 13.8.1 | |
| digium | asterisk | 13.8.2 | |
| digium | asterisk | 13.9.0 | |
| digium | asterisk | 13.9.1 | |
| digium | asterisk | 13.10.0 | |
| digium | asterisk | 13.11.0 | |
| digium | certified_asterisk | 11.6 | |
| digium | certified_asterisk | 11.6.0 | |
| digium | certified_asterisk | 13.8 | |
| digium | certified_asterisk | 13.8.0 | |
References
- https://security-tracker.debian.org/tracker/CVE-2016-7551
- http://downloads.asterisk.org/pub/security/AST-2016-007.html
- http://www.debian.org/security/2016/dsa-3700
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838832
- https://bugzilla.redhat.com/show_bug.cgi?id=1374733
- https://issues.asterisk.org/jira/browse/ASTERISK-26272
CWEs
CWE-399
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.