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Twisted における古典的バッファオーバーフローの脆弱性
Title Twisted における古典的バッファオーバーフローの脆弱性
Summary

Twisted には、古典的バッファオーバーフローの脆弱性が存在します。

Possible impacts サービス運用妨害 (DoS) 状態にされる可能性があります。 
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。

Publication Date March 3, 2022, midnight
Registration Date July 12, 2023, 4:36 p.m.
Last Update July 12, 2023, 4:36 p.m.
CVSS3.0 : 重要
Score 7.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS2.0 : 警告
Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected System
オラクル
Oracle HTTP Server 
ZFS Storage Appliance Kit 
Debian
Debian GNU/Linux 
Fedora Project
Fedora 
Twisted Matrix
Twisted 22.2.0 未満
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2023年07月12日]
  掲載		 July 12, 2023, 4:36 p.m.
NVD Vulnerability Information
CVE-2022-21716
Summary

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 < /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.

Publication Date March 4, 2022, 6:15 a.m.
Registration Date March 4, 2022, 10 a.m.
Last Update Nov. 21, 2024, 3:45 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:twistedmatrix:twisted:*:*:*:*:*:*:*:* 21.7.0 22.2.0
Configuration2 or higher or less more than less than
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
Configuration4 or higher or less more than less than
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List