CVE-2021-26906
5.9
MEDIUM
CVSS 3.1
EPSS 2.5%
描述
An issue was discovered in res_pjsip_session.c in Digium Asterisk through 13.38.1; 14.x, 15.x, and 16.x through 16.16.0; 17.x through 17.9.1; and 18.x through 18.2.0, and Certified Asterisk through 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure.
如何修補 CVE-2021-26906
要修補 CVE-2021-26906,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-2021-26906 正在被利用嗎?
低 — EPSS 為 2.5%,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 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |