Detections
Analytics
Alpine: multiple asterisk packages: security update to 18.0.1-r0
medium Tenable Cloud Security Plugin ID 423669
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- A res_pjsip_session crash was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1,
17.x before 17.8.1, and 18.x before 18.0.1. and Certified Asterisk before 16.8-cert5. Upon receiving a new
SIP Invite, Asterisk did not return the created dialog locked or referenced. This caused a gap between the
creation of the dialog object, and its next use by the thread that created it. Depending on some off-
nominal circumstances and timing, it was possible for another thread to free said dialog in this gap.
Asterisk could then crash when the dialog object, or any of its dependent objects, were dereferenced or
accessed next by the initial-creation thread. Note, however, that this crash can only occur when using a
connection-oriented protocol (e.g., TCP or TLS, but not UDP) for SIP transport. Also, the remote client
must be authenticated, or Asterisk must be configured for anonymous calling. (CVE-2020-28327)
See Also
Plugin Details
Severity: Medium
ID: 423669
Version: Revision 1.7
Type: Local
Published: 4/4/2025
Updated: 5/30/2025
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.18
CVSS v2
Risk Factor: Low
Base Score: 2.1
Temporal Score: 1.6
Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:N/A:P
CVSS Score Source: CVE-2020-28327
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.8
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
Exploit Available: true
Exploit Ease: Exploits are available
Vulnerability Publication Date: 11/6/2020
Reference Information
CVE: CVE-2020-28327