[KEV] Out-of-Bounds Write in Apple Multiple Products (CVE-2023-42917)
Summary
Out-of-bounds write in Apple Multiple Products (CVE-2023-42917). Successful exploitation can lead to full system takeover. Listed in CISA KEV — actively exploited. Mitigation: upgrade to 1.8.0, 8.0.411 or later.
Original description
The description as published by the source.
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2023-42917 has been found in Apple Multiple Products.
Successful exploitation can lead to full system takeover.
Note: CISA has officially confirmed this is actively exploited in the wild. Treat it with elevated urgency.
What to do: upgrade Apple Multiple Products to 1.8.0, 8.0.411 or later.
If unsure, ask your IT team or search "Apple Multiple Products CVE-2023-42917" on the vendor's site.
CVE-2023-42917 (Apple Multiple Products) — CWE-787
Attack vector: remote (network-reachable) / unauthenticated
Patched: 1.8.0, 8.0.411 — apply immediately
Listed in CISA KEV — actively exploited, treat as top priority.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Out-of-bounds write (CWE-787) exists in Apple Multiple Products.
Check the vendor advisory for the affected versions of Apple Multiple Products.
Severity: High. Successful exploitation can lead to full system takeover. Listed in CISA KEV — actively exploited in the wild, treat as top priority.
Update to 1.8.0, 8.0.411.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'java' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'java' . | 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
javaを grep し、稼働しているサービス・バージョンを把握する。 -
2Consider 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。侵入の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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3Apply patch patch
Upgrade Apple Multiple Products to 1.8.0, 8.0.411ステージング環境で 1.8.0, 8.0.411 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を含めること。
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4Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2023-42917 webkit2gtk Fixed in: 2.42.3-1~deb11u1
References
- advisory seclists.org
- advisory seclists.org
- advisory seclists.org
- advisory seclists.org
- advisory seclists.org
- advisory seclists.org
- advisory seclists.org
- advisory openwall.com
- advisory security.gentoo.org
- advisory support.apple.com
- advisory support.apple.com
- advisory support.apple.com
- advisory support.apple.com
- advisory support.apple.com
- advisory support.apple.com
- advisory debian.org
- web nvd.nist.gov
- web lists.fedoraproject.org
- web lists.fedoraproject.org
- web openjdk.org
- web cisa.gov