← Retour

UBUNTU-CVE-2022-25235

Vulnérabilité dans expat (UBUNTU-CVE-2022-25235)

Résumé

vulnérabilité dans expat (UBUNTU-CVE-2022-25235). L'exploitation peut entraîner la prise de contrôle totale du système. Atténuation : mise à jour vers `2.1.0-4ubuntu1.4+esm4` ou plus.

Résumé IA snake-internal / snake-material-v2

Une vulnérabilité référencée **UBUNTU-CVE-2022-25235** a été découverte dans expat. L'exploitation peut entraîner la prise de contrôle totale du système. Score CVSS : ?/10. Action : mettez à jour expat vers **2.1.0-4ubuntu1.4+esm4** ou supérieur. En cas de doute, contactez votre service informatique ou cherchez « expat UBUNTU-CVE-2022-25235 » sur le site de l'éditeur.

UBUNTU-CVE-2022-25235 (expat) — Vecteur d'attaque : distant (réseau) / non authentifié / sans interaction utilisateur Correctif : `2.1.0-4ubuntu1.4+esm4` — appliquer immédiatement Plan : 1) Audit SBOM, 2) Mise à jour staging→prod, 3) Surveillance WAF/proxy sur les endpoints affectés, 4) Recherche d'IOC dans les logs. Réfs : voir GHSA / avis éditeur / version corrigée liés sur cette page.

❓ Quel est le problème

Une **vulnérabilité** (non classée) affecte expat.

📍 Périmètre concerné

expat — .

🔥 Gravité

Gravité : ?. L'exploitation peut entraîner la prise de contrôle totale du système

🔧 Comment corriger

Mettre à jour vers **2.1.0-4ubuntu1.4+esm4**.

🛡️ Contournement

En attendant le correctif : désactivez la fonctionnalité concernée, appliquez des règles WAF, ou restreignez l'accès par ACL réseau.

🔍 Détection

Recherchez dans les logs des requêtes correspondant aux IOC connus de cette CVE. Auditez les SBOM/dépendances.

Actions de réponse (7 étapes)

Étapes concrètes et exemples de commandes que les équipes SOC/SRE doivent exécuter dans l'ordre

1
Identify exposure identify
```
grep -r 'expat' . | grep -v node_modules
```
リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `expat` を grep し、稼働しているサービス・バージョンを把握する。
6
Apply patch patch
```
Upgrade expat to 2.1.0-4ubuntu1.4+esm4
```
ステージング環境で 2.1.0-4ubuntu1.4+esm4 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
7
Post-deployment verification verify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。

Paquets affectés

Ubuntu:Pro:14.04:LTS expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-4ubuntu1.4+esm4"}]}]

Ubuntu:Pro:14.04:LTS coin3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4~abc9f50-4ubuntu2+esm2"}]}]

Ubuntu:Pro:14.04:LTS vnc4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:14.04:LTS vtk

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:14.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:16.04:LTS expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-7ubuntu0.16.04.5+esm2"}]}]

Ubuntu:Pro:16.04:LTS coin3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4~abc9f50+dfsg1-1ubuntu0.1~esm2"}]}]

Ubuntu:Pro:16.04:LTS insighttoolkit

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.20.1+git20120521-6ubuntu0.1~esm1"}]}]

Ubuntu:Pro:16.04:LTS libxmltok

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-3ubuntu0.16.04.1~esm2"}]}]

Ubuntu:Pro:16.04:LTS swish-e

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-4ubuntu0.1~esm1"}]}]

Ubuntu:16.04:LTS ayttm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:16.04:LTS cableswig

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:16.04:LTS insighttoolkit4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:16.04:LTS matanza

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:16.04:LTS vnc4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:16.04:LTS vtk

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:16.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:18.04:LTS expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.5-3ubuntu0.4"}]}]

Ubuntu:Pro:18.04:LTS coin3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4~abc9f50+dfsg3-2ubuntu0.1~esm1"}]}]

Ubuntu:Pro:18.04:LTS libxmltok

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.18.04.1~esm1"}]}]

Ubuntu:18.04:LTS matanza

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:18.04:LTS swish-e

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-5ubuntu1+esm1"}]}]

Ubuntu:18.04:LTS vnc4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:18.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:20.04:LTS expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.9-1ubuntu0.2"}]}]

Ubuntu:Pro:20.04:LTS libxmltok

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.20.04.1~esm1"}]}]

Ubuntu:20.04:LTS matanza

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:20.04:LTS swish-e

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-6ubuntu0.1~esm1"}]}]

Ubuntu:20.04:LTS wbxml2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:20.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:22.04:LTS firefox

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1snap1-0ubuntu1"}]}]

Ubuntu:22.04:LTS matanza

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:22.04:LTS thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:22.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:22.04:LTS libxmltok

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.22.04.1~esm1"}]}]

Ubuntu:Pro:22.04:LTS swish-e

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-6.1ubuntu0.1~esm1"}]}]

Ubuntu:24.04:LTS libxmltok

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4.1ubuntu1"}]}]

Ubuntu:24.04:LTS matanza

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:24.04:LTS thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:24.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:24.04:LTS swish-e

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-6.2ubuntu0.1~esm1"}]}]

Ubuntu:25.10 matanza

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:25.10 swish-e

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:25.10 thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:25.10 xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:26.04:LTS matanza

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:26.04:LTS thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:26.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:Pro:26.04:LTS swish-e

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-7.1ubuntu0.1~esm1"}]}]

Ubuntu:Pro:14.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.33.06-0ubuntu1+esm1"}]}]

Ubuntu:Pro:16.04:LTS ayttm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.3-3ubuntu0.1~esm1"}]}]

Ubuntu:Pro:16.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.33.14-1ubuntu1+esm1"}]}]

Ubuntu:Pro:18.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.33.14-8ubuntu0.18.04.1~esm1"}]}]

Ubuntu:Pro:20.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.33.14-8ubuntu0.20.04.1~esm1"}]}]

Ubuntu:Pro:22.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.33.14-10ubuntu0.1~esm1"}]}]

Ubuntu:Pro:24.04:LTS xmlrpc-c

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.33.14-12ubuntu0.1~esm1"}]}]

Ubuntu:Pro:16.04:LTS cableswig

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.0+git20150808-2ubuntu0.1~esm1"}]}]

Références

advisory https://ubuntu.com/security/notices/USN-5288-1
advisory https://ubuntu.com/security/notices/USN-5455-1
advisory https://ubuntu.com/security/notices/USN-8240-1
advisory https://ubuntu.com/security/notices/USN-8235-1
advisory https://ubuntu.com/security/notices/USN-8313-1
advisory https://ubuntu.com/security/notices/USN-8314-1
advisory https://ubuntu.com/security/notices/USN-8316-1
report https://ubuntu.com/security/CVE-2022-25235
report https://github.com/libexpat/libexpat/pull/562
report https://github.com/libexpat/libexpat/pull/562/commits/367ae600b48d74261bbc339b17e9318424049791
report https://github.com/libexpat/libexpat/pull/562/commits/97cfdc3fa7dca759880d81e371901f4620279106
report https://www.cve.org/CVERecord?id=CVE-2022-25235

Résumé

Résumé IA snake-internal / snake-material-v2

Actions de réponse (7 étapes)

Paquets affectés

Références

🍪 À propos des cookies