CVE intelligence and bounded remediation
CVE-2016-3863 — Google Android security vulnerability
Multiple stack-based buffer overflows in the AVCC reassembly implementation in Utils.cpp in libstagefright in MediaMuxer in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, 6.x before 2016-09-01, and 7.0 before 2016-09-01 allow remote attackers to execute arbitrary code via a crafted media file, aka internal bug 29161888.
- Severity
- High
- CVSS
- 7.8 (3.0)
- Published
- 2016-09-11
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-284
Affected products
- google / android / 4.0
- google / android / 4.0.1
- google / android / 4.0.2
- google / android / 4.0.3
- google / android / 4.0.4
- google / android / 4.1
Showing 6 representative product identities from 23 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
Authorization bypass, IDOR, and cross-tenant access
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
- Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
- Use synthetic fixtures to compare intended access matrices without accessing another user's real data.
Remediate safely
- Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
- Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
- Add deny-by-default policy tests for horizontal and vertical access across every affected transport.
Authoritative sources
Complete CVE record and remediation plan
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