[KEV] Écriture hors limites dans Google libwebp-sys2 (CVE-2023-4863)
Résumé
écriture hors limites dans Google libwebp-sys2 (CVE-2023-4863). L'exploitation peut entraîner la prise de contrôle totale du système. Inscrit au CISA KEV — exploitation active confirmée. Atténuation : mise à jour vers `0.1.8` ou plus.
Résumé IA snake-internal / snake-material-v2
Actions de réponse (7 étapes)
Étapes concrètes et exemples de commandes que les équipes SOC/SRE doivent exécuter dans l'ordre
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1Identify exposure identify
grep -r 'libwebp-sys2' . | 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 `libwebp-sys2` を grep し、稼働しているサービス・バージョンを把握する。
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4Consider incident declaration escalate
Notify SOC / on-callCISA KEV登録済 = 実環境で悪用が観測されている。Step 3 で兆候があればインシデント対応宣言、無くてもパッチ適用までWAF強化を最優先で。
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6Apply patch patch
Upgrade libwebp-sys2 to 0.1.8ステージング環境で 0.1.8 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。
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7Post-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
Références
- advisory https://nvd.nist.gov/vuln/detail/CVE-2023-4863
- advisory https://en.bandisoft.com/honeyview/history/
- advisory https://www.bentley.com/advisories/be-2023-0001/
- advisory https://adamcaudill.com/2023/09/14/whose-cve-is-it-anyway/
- advisory https://www.mozilla.org/en-US/security/advisories/mfsa2023-40/
- advisory https://www.bleepingcomputer.com/news/google/google-fixes-another-chrome-zero-day-bug-exploited-in-attacks/
- advisory https://security.netapp.com/advisory/ntap-20230929-0011/
- advisory https://rustsec.org/advisories/RUSTSEC-2023-0061.html
- advisory https://rustsec.org/advisories/RUSTSEC-2023-0060.html
- advisory https://github.com/advisories/GHSA-j7hp-h8jx-5ppr
- package https://github.com/webmproject/libwebp
- package https://pypi.org/project/pillow
- package https://crates.io/crates/libwebp-sys2
- package https://crates.io/crates/libwebp-sys
- report https://blog.isosceles.com/the-webp-0day/
- report https://stackdiary.com/critical-vulnerability-in-webp-codec-cve-2023-4863/
- web https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4863
- web https://lists.debian.org/debian-lts-announce/2023/09/msg00015.html
- web https://security.gentoo.org/glsa/202309-05
- web https://lists.debian.org/debian-lts-announce/2023/09/msg00017.html
- web https://www.debian.org/security/2023/dsa-5498
- web https://lists.debian.org/debian-lts-announce/2023/09/msg00016.html
- web https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html
- web https://github.com/webmproject/libwebp/releases/tag/v1.3.2
- web https://security.gentoo.org/glsa/202401-10
- web https://crbug.com/1479274
- web https://bugzilla.suse.com/show_bug.cgi?id=1215231
- web https://security-tracker.debian.org/tracker/CVE-2023-4863
- web https://github.com/webmproject/libwebp/commit/902bc9190331343b2017211debcec8d2ab87e17a
- web https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863
- web http://www.openwall.com/lists/oss-security/2023/09/22/1
- web http://www.openwall.com/lists/oss-security/2023/09/28/1
- web http://www.openwall.com/lists/oss-security/2023/09/28/2
- web http://www.openwall.com/lists/oss-security/2023/09/22/3
- web http://www.openwall.com/lists/oss-security/2023/09/22/5
- web http://www.openwall.com/lists/oss-security/2023/09/28/4
- web https://www.debian.org/security/2023/dsa-5497
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/PYZV7TMKF4QHZ54SFJX54BDN52VHGGCX/
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I/
- web https://www.debian.org/security/2023/dsa-5496
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/FYYKLG6CRGEDTNRBSU26EEWAO6D6U645/
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/WHOLML7N2G5KCAZXFWC5IDFFHSQS5SDB/
- web http://www.openwall.com/lists/oss-security/2023/09/22/4
- web http://www.openwall.com/lists/oss-security/2023/09/22/7
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/
- web http://www.openwall.com/lists/oss-security/2023/09/21/4
- web http://www.openwall.com/lists/oss-security/2023/09/22/6
- web http://www.openwall.com/lists/oss-security/2023/09/22/8
- web http://www.openwall.com/lists/oss-security/2023/09/26/1
- web http://www.openwall.com/lists/oss-security/2023/09/26/7
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/OZDGWWMJREPAGKWCJKSCM4WYLANSKIFX/
- web https://sethmlarson.dev/security-developer-in-residence-weekly-report-16
- web https://www.vicarius.io/vsociety/posts/zero-day-webp-vulnerability-cve-2023-4863
- web https://news.ycombinator.com/item?id=37478403
- web https://github.com/qnighy/libwebp-sys2-rs/pull/21
- web https://github.com/python-pillow/Pillow/pull/7395
- web https://github.com/jaredforth/webp/pull/30
- web https://github.com/electron/electron/pull/39823
- web https://github.com/electron/electron/pull/39825
- web https://github.com/electron/electron/pull/39826
- web https://github.com/electron/electron/pull/39827
- web https://github.com/electron/electron/pull/39828
- web https://github.com/qnighy/libwebp-sys2-rs/commit/4560c473a76ec8bd8c650f19ddf9d7a44f719f8b
- web https://github.com/jaredforth/webp/commit/9d4c56e63abecc777df71c702503c3eaabd7dcbc
- web https://pillow.readthedocs.io/en/stable/releasenotes/10.0.1.html#security
- web https://adamcaudill.com/2023/09/14/whose-cve-is-it-anyway
- web https://security.netapp.com/advisory/ntap-20230929-0011
- web https://stackdiary.com/critical-vulnerability-in-webp-codec-cve-2023-4863
- web https://www.bentley.com/advisories/be-2023-0001
- web https://www.bleepingcomputer.com/news/google/google-fixes-another-chrome-zero-day-bug-exploited-in-attacks
- web https://www.mozilla.org/en-US/security/advisories/mfsa2023-40
- web https://blog.isosceles.com/the-webp-0day
- web https://en.bandisoft.com/honeyview/history
- web https://github.com/ImageMagick/ImageMagick/discussions/6664
- web https://github.com/dlemstra/Magick.NET/releases/tag/13.3.0
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/FYYKLG6CRGEDTNRBSU26EEWAO6D6U645
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/OZDGWWMJREPAGKWCJKSCM4WYLANSKIFX
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/PYZV7TMKF4QHZ54SFJX54BDN52VHGGCX
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/WHOLML7N2G5KCAZXFWC5IDFFHSQS5SDB
- web https://lists.fedoraproject.org/archives/list/[email protected]/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I