CVE-2017-16672

medium

Published 2017-11-09 · Modified 2026-05-13

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

5.9

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.9

Description

An issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. A memory leak occurs when an Asterisk pjsip session object is created and that call gets rejected before the session itself is fully established. When this happens the session object never gets destroyed. Eventually Asterisk can run out of memory and crash.

Predictions

Exploit likelihood

69%

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 with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
debian	bullseye	fixed	`1:13.18.1~dfsg-1`
debian	sid	fixed	`1:13.18.1~dfsg-1`

Application impact

Vendor	Product	Versions	Fixed
digium	asterisk	`{"startIncluding":"13.0.0","endExcluding":"13.18.1"}`	`13.18.1`
digium	certified_asterisk	`13.13.0`

References

CWEs

CWE-772

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.