VDB
CVE-2021-31878
CVE-2021-31878
PUBLISHED
CVSS 6.5 MEDIUM
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.
EPSS 2.43% · 83.1th percentile
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
2.43%
83.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:16.04:LTS | asterisk | *, 1:13.1.0~dfsg-1.1ubuntu4.1, 1:13.1.0~dfsg-1.1ubuntu3 |
| Ubuntu:25.10 | asterisk | 1:22.4.1~dfsg+~cs6.15.60671435-2, 1:22.5.2~dfsg+~cs6.15.60671435-1, 1:22.5.1~dfsg+~cs6.15.60671435-1 |
| Ubuntu:22.04:LTS | asterisk | *, 1:16.16.1~dfsg-2, 1:16.16.1~dfsg-4 |
| Ubuntu:20.04:LTS | asterisk | 1:16.2.1~dfsg-2ubuntu1, 1:16.2.1~dfsg-2build3, 1:16.2.1~dfsg-2build2 |
| Ubuntu:18.04:LTS | asterisk | 1:13.17.2~dfsg-2ubuntu1, 1:13.17.2~dfsg-1ubuntu1, 0 |
| Ubuntu:24.04:LTS | asterisk | *, 1:20.5.2~dfsg+~cs6.13.40431414-1, 1:20.5.1~dfsg+~cs6.13.40431414-1 |
Timeline
- Jul 22, 2021 CVE Published
- Jul 27, 2021 EPSS Score
- Jul 28, 2021 EPSS Score
- Sep 24, 2021 EPSS Score
- Oct 9, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Jan 21, 2022 EPSS Score
- Mar 21, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 24, 2022 CVE Updated
- Jul 19, 2022 EPSS Score
- Sep 16, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-31878 third-party-advisory
- http://downloads.asterisk.org/pub/security/AST-2021-007.html third-party-advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29381 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-31878 third-party-advisory