Linux Distros のパッチ未適用の脆弱性: CVE-2026-88047
high Nessus プラグイン ID 344648
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概要
Linux/Unix ホストには、ベンダーにより修正されていないことを示す脆弱性を持つ複数のパッケージがインストールされています。説明
Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。- Tesseract は、オープンソースの OCR エンジンです。バージョン 5.5.3 以前では、src/classify/normmatch.cpp内のClassify::ReadNormProtosは、.traineddataファイルのNORMPROTOコンポーネントを解析し、std::istream::operator>>(char*)を使用して、ストリーム幅を設定せずに空白区切りのトークンを固定61バイトのスタックバッファに抽出します。100 バイトのラインバッファは、最大 99 文字のトークンを運ぶことができます。したがって、60 文字より長いトークンは、レガシーエンジンの TessBaseAPI::Init 中にバッファを越えて最大 39 バイトの攻撃者の制御により書き込み、これにより、スタック破損、サービス拒否、および影響を受ける標準ライブラリ実装での制御フローハイジャックを引き起こす可能性があります。一般的な libstdc++ ビルドが影響を受ける一方で、Apple の libc++ C++20 バウンド付き配列オーバーロードを使用するビルドは偶発的に保護されます。このレビューの時点で利用可能な修正済みリリースはありません。(CVE-2026-88047)
Nessus は、ベンダーから報告されたパッケージの存在に依存していることに注意してください。
ソリューション
現時点で既知の解決策はありません。参考資料
https://access.redhat.com/security/cve/cve-2026-88047
プラグインの詳細
深刻度: High
ID: 344648
ファイル名: unpatched_CVE_2026_88047.nasl
バージョン: 1.3
タイプ: Local
エージェント: unix
ファミリー: Misc.
公開日: 2026/9/10
更新日: 2026/9/11
サポートされているセンサー: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
リスク情報
VPR
リスクファクター: Medium
スコア: 5
パーセンタイル: 93.4
CVSS v2
リスクファクター: Medium
基本値: 4.3
現状値: 3.7
ベクトル: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS スコアのソース: CVE-2026-88047
CVSS v3
リスクファクター: Medium
基本値: 5.5
現状値: 5.1
ベクトル: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
現状ベクトル: CVSS:3.0/E:U/RL:U/RC:C
CVSS v4
リスクファクター: High
Base Score: 8.6
Threat Score: 6.1
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
脆弱性情報
CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:tesseract, p-cpe:/a:centos:centos:tesseract-devel, p-cpe:/a:centos:centos:tesseract-langpack-afr, p-cpe:/a:centos:centos:tesseract-langpack-amh, p-cpe:/a:centos:centos:tesseract-langpack-ara, p-cpe:/a:centos:centos:tesseract-langpack-asm, p-cpe:/a:centos:centos:tesseract-langpack-aze, p-cpe:/a:centos:centos:tesseract-langpack-aze_cyrl, p-cpe:/a:centos:centos:tesseract-langpack-bel, p-cpe:/a:centos:centos:tesseract-langpack-ben, p-cpe:/a:centos:centos:tesseract-langpack-bod, p-cpe:/a:centos:centos:tesseract-langpack-bos, p-cpe:/a:centos:centos:tesseract-langpack-bul, p-cpe:/a:centos:centos:tesseract-langpack-cat, p-cpe:/a:centos:centos:tesseract-langpack-ceb, p-cpe:/a:centos:centos:tesseract-langpack-ces, p-cpe:/a:centos:centos:tesseract-langpack-chi_sim, p-cpe:/a:centos:centos:tesseract-langpack-chi_tra, p-cpe:/a:centos:centos:tesseract-langpack-chr, p-cpe:/a:centos:centos:tesseract-langpack-cym, p-cpe:/a:centos:centos:tesseract-langpack-dan, p-cpe:/a:centos:centos:tesseract-langpack-deu, p-cpe:/a:centos:centos:tesseract-langpack-dzo, p-cpe:/a:centos:centos:tesseract-langpack-ell, p-cpe:/a:centos:centos:tesseract-langpack-enm, p-cpe:/a:centos:centos:tesseract-langpack-epo, p-cpe:/a:centos:centos:tesseract-langpack-est, p-cpe:/a:centos:centos:tesseract-langpack-eus, p-cpe:/a:centos:centos:tesseract-langpack-fas, p-cpe:/a:centos:centos:tesseract-langpack-fin, p-cpe:/a:centos:centos:tesseract-langpack-fra, p-cpe:/a:centos:centos:tesseract-langpack-frk, p-cpe:/a:centos:centos:tesseract-langpack-frm, p-cpe:/a:centos:centos:tesseract-langpack-gle, p-cpe:/a:centos:centos:tesseract-langpack-glg, p-cpe:/a:centos:centos:tesseract-langpack-grc, p-cpe:/a:centos:centos:tesseract-langpack-guj, p-cpe:/a:centos:centos:tesseract-langpack-hat, p-cpe:/a:centos:centos:tesseract-langpack-heb, p-cpe:/a:centos:centos:tesseract-langpack-hin, p-cpe:/a:centos:centos:tesseract-langpack-hrv, p-cpe:/a:centos:centos:tesseract-langpack-hun, p-cpe:/a:centos:centos:tesseract-langpack-iku, p-cpe:/a:centos:centos:tesseract-langpack-ind, p-cpe:/a:centos:centos:tesseract-langpack-isl, p-cpe:/a:centos:centos:tesseract-langpack-ita, p-cpe:/a:centos:centos:tesseract-langpack-ita_old, p-cpe:/a:centos:centos:tesseract-langpack-jav, p-cpe:/a:centos:centos:tesseract-langpack-jpn, p-cpe:/a:centos:centos:tesseract-langpack-kan, p-cpe:/a:centos:centos:tesseract-langpack-kat, p-cpe:/a:centos:centos:tesseract-langpack-kat_old, p-cpe:/a:centos:centos:tesseract-langpack-kaz, p-cpe:/a:centos:centos:tesseract-langpack-khm, p-cpe:/a:centos:centos:tesseract-langpack-kir, p-cpe:/a:centos:centos:tesseract-langpack-kor, p-cpe:/a:centos:centos:tesseract-langpack-lao, p-cpe:/a:centos:centos:tesseract-langpack-lat, p-cpe:/a:centos:centos:tesseract-langpack-lav, p-cpe:/a:centos:centos:tesseract-langpack-lit, p-cpe:/a:centos:centos:tesseract-langpack-mal, p-cpe:/a:centos:centos:tesseract-langpack-mar, p-cpe:/a:centos:centos:tesseract-langpack-mkd, p-cpe:/a:centos:centos:tesseract-langpack-mlt, p-cpe:/a:centos:centos:tesseract-langpack-msa, p-cpe:/a:centos:centos:tesseract-langpack-mya, p-cpe:/a:centos:centos:tesseract-langpack-nep, p-cpe:/a:centos:centos:tesseract-langpack-nld, p-cpe:/a:centos:centos:tesseract-langpack-nor, p-cpe:/a:centos:centos:tesseract-langpack-ori, p-cpe:/a:centos:centos:tesseract-langpack-pan, p-cpe:/a:centos:centos:tesseract-langpack-pol, p-cpe:/a:centos:centos:tesseract-langpack-por, p-cpe:/a:centos:centos:tesseract-langpack-pus, p-cpe:/a:centos:centos:tesseract-langpack-ron, p-cpe:/a:centos:centos:tesseract-langpack-rus, p-cpe:/a:centos:centos:tesseract-langpack-san, p-cpe:/a:centos:centos:tesseract-langpack-sin, p-cpe:/a:centos:centos:tesseract-langpack-slk, p-cpe:/a:centos:centos:tesseract-langpack-slv, p-cpe:/a:centos:centos:tesseract-langpack-spa, p-cpe:/a:centos:centos:tesseract-langpack-spa_old, p-cpe:/a:centos:centos:tesseract-langpack-sqi, p-cpe:/a:centos:centos:tesseract-langpack-srp, p-cpe:/a:centos:centos:tesseract-langpack-srp_latn, p-cpe:/a:centos:centos:tesseract-langpack-swa, p-cpe:/a:centos:centos:tesseract-langpack-swe, p-cpe:/a:centos:centos:tesseract-langpack-syr, p-cpe:/a:centos:centos:tesseract-langpack-tam, p-cpe:/a:centos:centos:tesseract-langpack-tel, p-cpe:/a:centos:centos:tesseract-langpack-tgk, p-cpe:/a:centos:centos:tesseract-langpack-tha, p-cpe:/a:centos:centos:tesseract-langpack-tir, p-cpe:/a:centos:centos:tesseract-langpack-tur, p-cpe:/a:centos:centos:tesseract-langpack-uig, p-cpe:/a:centos:centos:tesseract-langpack-ukr, p-cpe:/a:centos:centos:tesseract-langpack-urd, p-cpe:/a:centos:centos:tesseract-langpack-uzb, p-cpe:/a:centos:centos:tesseract-langpack-uzb_cyrl, p-cpe:/a:centos:centos:tesseract-langpack-vie, p-cpe:/a:centos:centos:tesseract-langpack-yid, p-cpe:/a:centos:centos:tesseract-osd, p-cpe:/a:centos:centos:tesseract, p-cpe:/a:debian:debian_linux:tesseract, p-cpe:/a:redhat:enterprise_linux:tesseract-devel, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-afr, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-amh, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ara, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-asm, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-aze, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-aze_cyrl, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-bel, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ben, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-bod, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-bos, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-bul, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-cat, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ceb, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ces, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-chi_sim, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-chi_tra, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-chr, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-cym, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-dan, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-deu, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-dzo, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ell, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-enm, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-epo, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-est, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-eus, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-fas, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-fin, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-fra, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-frk, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-frm, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-gle, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-glg, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-grc, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-guj, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-hat, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-heb, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-hin, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-hrv, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-hun, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-iku, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ind, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-isl, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ita, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ita_old, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-jav, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-jpn, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-kan, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-kat, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-kat_old, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-kaz, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-khm, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-kir, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-kor, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-lao, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-lat, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-lav, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-lit, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-mal, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-mar, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-mkd, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-mlt, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-msa, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-mya, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-nep, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-nld, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-nor, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ori, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-pan, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-pol, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-por, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-pus, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ron, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-rus, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-san, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-sin, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-slk, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-slv, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-spa, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-spa_old, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-sqi, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-srp, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-srp_latn, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-swa, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-swe, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-syr, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-tam, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-tel, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-tgk, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-tha, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-tir, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-tur, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-uig, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-ukr, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-urd, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-uzb, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-uzb_cyrl, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-vie, p-cpe:/a:redhat:enterprise_linux:tesseract-langpack-yid, p-cpe:/a:redhat:enterprise_linux:tesseract-osd, p-cpe:/a:redhat:enterprise_linux:tesseract
必要な KB アイテム: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier
エクスプロイトの容易さ: No known exploits are available
脆弱性公開日: 2026/9/10
参照情報
CVE: CVE-2026-88047