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CVE-2023-45677
Out-of-Bounds Write in CVE-2023-45677 (CVE-2023-45677)
Summary
out-of-bounds write in CVE-2023-45677 (CVE-2023-45677). Risk of unauthorized operations or information disclosure. Exploitable via ``len``.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2023-45677** has been found in CVE-2023-45677.
Attackers can target a specific entry point like ``len`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2023-45677 CVE-2023-45677" on the vendor's site.
CVE-2023-45677 (CVE-2023-45677) — CWE-787 /
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: `len` / `start_decoder` / `setup_malloc`
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.
❓ What is the problem
**out-of-bounds write** (CWE-787) exists in CVE-2023-45677. Attackers reach the vulnerable code path via ``len`` without authentication.
📍 Affected scope
CVE-2023-45677 — . Attack surface: `len` / `start_decoder` / `setup_malloc`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.依存マニフェストで影響コンポーネントを特定する。
-
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。
References
- advisory https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45677.json
- advisory https://nvd.nist.gov/vuln/detail/CVE-2023-45677
- advisory https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/
- web https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3652-L3658
- web https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3653
- web https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3658
- web https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3670C7-L3670C75
- web https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L950-L961