CVE-2021-26712
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductDigium Asterisk
PublishedFeb 18, 2021
First seenFeb 18, 2021
How to fix
Update
- digium asterisk16.16.1, 17.9.2, 18.2.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| digium asterisk | 13.0.0 ≤ v ≤ 13.38.2, 16.0.0 ≤ v < 16.16.1, 17.0.0 ≤ v < 17.9.2, 18.0 ≤ v < 18.2.1 | 16.16.1, 17.9.2, 18.2.1 |
| digium certified_asterisk | 16.8 | — |
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