CVE-2019-1990
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 ihevcd_fmt_conv_420sp_to_420p of ihevcd_fmt_conv.c, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9Android ID: A-118453553
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 confidenceA missing bounds check in the ihevcd_fmt_conv_420sp_to_420p function within the HEVC (H.265) video decoder allows an out-of-bounds write during YUV color space conversion. This memory corruption vulnerability in Android's media codec can be triggered by a specially crafted video file, potentially allowing remote code execution without requiring additional privileges.
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= 7.0= 7.1.1= 7.1.2= 8.0= 8.1= 9.0CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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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Verify Android versionRun 'getprop ro.build.version.release' or check Settings > About Phone > Android versionAffected if The version is 7.0, 7.1.1, 7.1.2, 8.0, 8.1, or 9.0
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Confirm HEVC decoder is presentCheck for the presence of an HEVC-capable media codec by examining /system/lib/libhevc* or running 'media.codecs' grep for HEVC support in getprop outputAffected if An HEVC/H.265 decoder library exists on the device (libhevc, libihevc, or similar)
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Identify if 420sp to 420p conversion path is reachableMonitor mediaserver or mediaserver_s logs during HEVC video playback using 'logcat | grep -i hevc' or 'logcat | grep -i 420sp'Affected if HEVC content is being decoded and the device uses the 420sp to 420p color space conversion format (common in camera/video capture scenarios)
You are affected if your Android version is 7.0, 7.1.1, 7.1.2, 8.0, 8.1, or 9.0 AND the HEVC decoder is present and actively processing content that triggers the 420sp to 420p conversion path.
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.
From vendor dataApply the Android security patch for the affected Android versions (7.0-9). The fix requires adding proper bounds validation in the format conversion function to ensure buffer size checks occur before write operations.
- Consultation4.0 h
- Implementation8.0 h
- Testing16.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,728.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-1990 — 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-2019-1990 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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