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このページは Ubuntu 向けの修正状況です。脆弱性そのものの説明は CVE 本体のページにあります。 CVE-2026-105239 の詳細 →
カテゴリ
UBUNTU-CVE-2026-105239

Improper Neutralization of Null Byte or NUL Character vulnerability in the EventLogAppender of Apache log4net. A NUL character in logged content ended...

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)。

Improper Neutralization of Null Byte or NUL Character vulnerability in the EventLogAppender of Apache log4net. A NUL character in logged content ended the Windows Event Log record at that point, so everything the layout rendered after it, including exception text and trailing fields, was silently not stored. A party whose data reaches a log message could hide the rest of that record. Only applications on Windows that use EventLogAppender are affected. This issue affects Apache log4net: from 1.2.9 before 3.5.0. Users are recommended to upgrade to version 3.5.0, which fixes the issue.

出典: OSV.dev (Open Source Vulnerabilities) OSV

影響パッケージ

Ubuntu:16.04:LTS log4net
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS log4net
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS log4net
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS log4net
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS log4net
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10 log4net
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS log4net
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

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