Vulnerability Description
An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Digium | Asterisk | >= 13.0.0, < 13.38.3 |
| Digium | Certified Asterisk | 16.8 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-APatchThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2021/Jul/49Mailing ListPatchThird Party Advisory
- https://downloads.asterisk.org/pub/security/AST-2021-008.htmlPatchVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29392ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2021/08/msg00005.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2021/dsa-4999Third Party Advisory
- http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-APatchThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2021/Jul/49Mailing ListPatchThird Party Advisory
- https://downloads.asterisk.org/pub/security/AST-2021-008.htmlPatchVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29392ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2021/08/msg00005.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2021/dsa-4999Third Party Advisory
FAQ
What is CVE-2021-32558?
CVE-2021-32558 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver ...
How severe is CVE-2021-32558?
CVE-2021-32558 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-2021-32558?
Check the references section above for vendor advisories and patch information. Affected products include: Digium Asterisk, Digium Certified Asterisk, Debian Debian Linux.