CVE-2021-26717
18.02.2021, 20:15
An issue was discovered in Sangoma Asterisk 16.x before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6. When re-negotiating for T.38, if the initial remote response was delayed just enough, Asterisk would send both audio and T.38 in the SDP. If this happened, and the remote responded with a declined T.38 stream, then Asterisk would crash.Enginsight
| Vendor | Product | Version |
|---|---|---|
| digium | asterisk | 16.0.0 ≤ 𝑥 < 16.16.1 |
| digium | asterisk | 17.0.0 ≤ 𝑥 < 17.9.2 |
| digium | asterisk | 18.0 ≤ 𝑥 < 18.2.1 |
| digium | certified_asterisk | 16.8 |
| digium | certified_asterisk | 16.8:cert1-rc1 |
| digium | certified_asterisk | 16.8:cert1-rc2 |
| digium | certified_asterisk | 16.8:cert1-rc3 |
| digium | certified_asterisk | 16.8:cert1-rc4 |
| digium | certified_asterisk | 16.8:cert2 |
| digium | certified_asterisk | 16.8:cert3 |
| digium | certified_asterisk | 16.8:cert4 |
| digium | certified_asterisk | 16.8:cert4-rc1 |
| digium | certified_asterisk | 16.8:cert4-rc2 |
| digium | certified_asterisk | 16.8:cert4-rc3 |
| digium | certified_asterisk | 16.8:cert4-rc4 |
| digium | certified_asterisk | 16.8:cert5 |
𝑥
= Vulnerable software versions
Debian Releases
Ubuntu Releases
References