Linux Distros のパッチ未適用の脆弱性: CVE-2026-88053

high Nessus プラグイン ID 344685

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/intproto.cpp内のClassify::ReadIntTemplatesは、細工された.traineddataファイルのTESSDATA_INTTEMPコンポーネントからNumClassPruners、NumClasses、NumProtoSetsを読み取り、MAX_NUM_CLASS_PRUNERS、MAX_NUM_CLASSES、MAX_NUM_PROTO_SETSに対して検証せずに、これらの値をループ境界として使用します。ループは、INT_TEMPLATES_STRUCT と INT_CLASS_STRUCT の固定容量の ClassPruners および ProtoSets 配列にヒープポインターを保存するため、OCR が開始する前のレガシー分類子の初期化中に、カウントが大きすぎるとヒープの領域外ポインターが書き込まれ、ヒープの破損、クラッシュ、または制御された破損が起こります。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-2026-88053)

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-2026-88053

https://security-tracker.debian.org/tracker/CVE-2026-88053

https://ubuntu.com/security/CVE-2026-88053

プラグインの詳細

深刻度: High

ID: 344685

ファイル名: unpatched_CVE_2026_88053.nasl

バージョン: 1.2

タイプ: Local

エージェント: unix

ファミリー: Misc.

公開日: 2026/9/11

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: 4.9

パーセンタイル: 58.22

CVSS v2

リスクファクター: Medium

基本値: 6.8

現状値: 5.8

ベクトル: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS スコアのソース: CVE-2026-88053

CVSS v3

リスクファクター: High

基本値: 7.8

現状値: 7.1

ベクトル: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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-2026-88053