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CVE-2021-31878

nvd nist
Published: Jul 30, 2021Modified: Jun 17, 2026

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: NVD

Description

An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request.

Affected (6)

Products: Digium: Asterisk
Digium
1 product
Asterisk
Configuration A
6 vulnerable
Vulnerable SoftwareAffected Versions
Digium
Asterisk
Version 16.17.0
Asterisk
Version 16.18.0
Asterisk
Version 16.19.0
Asterisk
Version 18.3.0
Asterisk
Version 18.4.0
Asterisk
Version 18.5.0

Related CWEs

CWE-617
Reachable Assertion
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

References (10)

Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
PatchThird Party AdvisoryVDB Entry
Source: cve@mitre.org
Mailing ListPatchThird Party Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
ExploitIssue TrackingVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingVendor Advisory

Timeline

No history available yet.