CVE-2021-26717
7.5
HIGH
CVSS 3.1
EPSS 2.2%
描述
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.
如何修補 CVE-2021-26717
要修補 CVE-2021-26717,請將受影響套件升級到下列已修補版本。
- —升級至 1:16.16.1~dfsg-1 或更新版本
CVE-2021-26717 正在被利用嗎?
低 — EPSS 為 2.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 1:16.16.1~dfsg-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |