CVE-2021-21375
ring - security update
6.5
MEDIUM
CVSS 3.1
EPSS 2.1%
描述
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP version 2.10 and earlier, after an initial INVITE has been sent, when two 183 responses are received, with the first one causing negotiation failure, a crash will occur. This results in a denial of service.
如何修補 CVE-2021-21375
要修補 CVE-2021-21375,請將受影響套件升級到下列已修補版本。
- —升級至 2.11-r0 或更新版本
- —升級至 2.5.5~dfsg-6+deb9u2 或更新版本
- —升級至 20210112.2.b757bac~ds1-1 或更新版本
- —升級至 20161221.2.7bd7d91~dfsg1-1+deb9u1 或更新版本
CVE-2021-21375 正在被利用嗎?
低 — EPSS 為 2.1%,目前沒有觀察到大規模利用活動。
受影響套件(4)
- from 0, < 2.11-r0
- from 0, < 2.5.5~dfsg-6+deb9u2
- from 0, < 20210112.2.b757bac~ds1-1
- from 0, < 20161221.2.7bd7d91~dfsg1-1+deb9u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |