Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Digium | Asterisk | >= 13.0.0, <= 13.38.2 |
| Digium | Certified Asterisk | 16.8 |
References
- http://packetstormsecurity.com/files/161473/Asterisk-Project-Security-Advisory-AThird Party Advisory
- http://seclists.org/fulldisclosure/2021/Feb/59Mailing ListThird Party Advisory
- https://downloads.asterisk.org/pub/security/Vendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2021-003.htmlVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29260Issue TrackingPatchVendor Advisory
- http://packetstormsecurity.com/files/161473/Asterisk-Project-Security-Advisory-AThird Party Advisory
- http://seclists.org/fulldisclosure/2021/Feb/59Mailing ListThird Party Advisory
- https://downloads.asterisk.org/pub/security/Vendor Advisory
- https://downloads.asterisk.org/pub/security/AST-2021-003.htmlVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29260Issue TrackingPatchVendor Advisory
FAQ
What is CVE-2021-26712?
CVE-2021-26712 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 secu...
How severe is CVE-2021-26712?
CVE-2021-26712 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-26712?
Check the references section above for vendor advisories and patch information. Affected products include: Digium Asterisk, Digium Certified Asterisk.