CVE-2021-0613
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIn asf extractor, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05489178; Issue ID: ALPS05489178.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceIn the ASF (Advanced Systems Format) extractor component, an incorrect bounds check allows an out-of-bounds read vulnerability. This enables a local attacker to read memory contents beyond allocated buffer boundaries, leading to local information disclosure. No user interaction or elevated privileges are required for exploitation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 10.0= 11.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check Android OS versionGo to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADBAffected if The device runs Android 10.0 or Android 11.0 exactly
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Confirm ASF extractor is in useCheck if the device processes ASF (Advanced Systems Format) media files - look for .asf or .wma/.wmv file processing capability in media appsAffected if Media applications that can decode ASF files are installed and used
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Verify no vendor patch appliedCheck device security patch level in Settings > About Phone > Security patch level, or run 'getprop ro.build.version.security_patch' via ADBAffected if Security patch level is earlier than the ALPS05489178 vendor fix (specific date varies by carrier/device)
A device is affected if it runs Android 10.0 or 11.0 and processes ASF media files without having received the ALPS05489178 vendor patch.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedApply the vendor patch ALPS05489178 to address the incorrect bounds check in the ASF extractor. Until the patch is available, restrict access to untrusted ASF media files and monitor for anomalous media processing behavior.
Android Security Patch Level April 2021 or later (contact device manufacturer for specific firmware version)
- 1. Check the current Android security patch level on the device in Settings > About Phone > Security Patch Level
- 2. Verify if the device has received the April 2021 Android Security Bulletin or later updates
- 3. Contact the device manufacturer (e.g., Oppo, Xiaomi, Realme, etc. using MediaTek chipsets) for the specific firmware update containing patch ALPS05489178
- 4. Apply the manufacturer-provided system update that includes the CVE-2021-0613 fix
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-0613 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-0613 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data