CVE-2024-20877
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 · uneditedHeap out-of-bound write vulnerability in parsing grid image header in libsavscmn.so prior to SMR Jun-2024 Release 1 allows local attackers to execute arbitrary code.
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 heap out-of-bounds write vulnerability exists in the libsavscmn.so library when parsing grid image headers. The vulnerability allows local attackers to execute arbitrary code due to improper bounds checking during the parsing process, prior to the SMR Jun-2024 Release 1 patch.
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= 12.0= 13.0= 14.0CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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.
-
Confirm Android versionCheck system settings or run 'getprop ro.build.version.release' to verify the Android versionAffected if Version is 12.0, 13.0, or 14.0
-
Locate libsavscmn.so librarySearch for the library file on the device filesystem, typically found in /system/lib64/ or /vendor/lib64/ directoriesAffected if The library exists on the device
-
Identify grid image header parsing functionalityExamine which applications or services invoke libsavscmn.so for grid image processing - check logs or code references for grid image header parsing callsAffected if Any application or service actively uses the grid image header parsing feature in libsavscmn.so
-
Verify library version or build dateCheck file metadata of libsavscmn.so (file size, modification date, or embedded version strings) to compare against the patched version from SMR Jun-2024 Release 1Affected if The library version predates the Jun-2024 patch or cannot be verified as updated
A device is affected if it runs Android 12.0, 13.0, or 14.0, contains the vulnerable libsavscmn.so library, and has the grid image header parsing functionality accessible to trigger the improper bounds checking.
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 · scopedUpdate to SMR Jun-2024 Release 1 or later to obtain the patched version of libsavscmn.so. Identify all deployments of the affected library and verify the fix does not introduce regressions.
Samsung SMR June-2024 Release 1 or later (security patch level June-2024)
- Check for system software updates on your Samsung Galaxy device
- Navigate to Settings > Software update > Download and install
- Ensure the device is updated to Samsung SMR (Security Maintenance Release) June-2024 or later
- Verify the patch level by going to Settings > About phone > Software information and confirming the security patch level is June-2024 or newer
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation2.0 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 $3,392.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20877 — 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-2024-20877 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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