Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION` callback triggers a use-after-free vulnerability, where libcurl attempts...

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

Calling curl_easy_pause() within the event-based CURLMOPT_SOCKETFUNCTION callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed.

出典: OSV.dev (Open Source Vulnerabilities) OSV

影響パッケージ

Ubuntu:25.10 curl

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.14.1-2ubuntu1.4"}]}]

Ubuntu:26.10 curl

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.20.0-2ubuntu11"}]}]

Ubuntu:26.04:LTS curl

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.18.0-1ubuntu2.2"}]}]

参照URL

advisory ubuntu.com
advisory ubuntu.com
report ubuntu.com
report cve.org
report curl.se