CVE-2021-22925

描述

curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.

如何修補 CVE-2021-22925

要修補 CVE-2021-22925,請將受影響套件升級到下列已修補版本。

• —升級至 7.67.0-r5 或更新版本

CVE-2021-22925 正在被利用嗎?

低 — EPSS 為 4.9%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 7.7, < 7.67.0-r5

CVSS 分數

參考連結(1)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2021-22925