CVE-2021-26712
Published: 18 February 2021
Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets.
Priority
Status
Package | Release | Status |
---|---|---|
asterisk Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
focal |
Needed
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
jammy |
Needed
|
|
kinetic |
Ignored
(end of life, was needed)
|
|
lunar |
Ignored
(end of life, was needed)
|
|
mantic |
Needed
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Not vulnerable
(code not present)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
- http://packetstormsecurity.com/files/161473/Asterisk-Project-Security-Advisory-AST-2021-003.html
- http://seclists.org/fulldisclosure/2021/Feb/59
- https://downloads.asterisk.org/pub/security/
- https://downloads.asterisk.org/pub/security/AST-2021-003.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29260
- https://www.cve.org/CVERecord?id=CVE-2021-26712
- NVD
- Launchpad
- Debian