CVE-2023-42537
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 · uneditedAn improper input validation in get_head_crc in libsaped prior to SMR Nov-2023 Release 1 allows local attackers to cause out-of-bounds read and write.
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 · moderate confidenceImproper input validation in the get_head_crc function of libsaped allows local attackers to trigger out-of-bounds memory read and write operations. This memory safety vulnerability stems from insufficient validation of input data before processing, potentially allowing an attacker to read sensitive memory contents or corrupt memory beyond intended boundaries.
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= 11.0= 12.0= 13.0CVSS 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.
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Check Android version on Samsung deviceGo to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADBAffected if Version is 11.0, 12.0, or 13.0 (exact match)
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Confirm Samsung deviceCheck if the device is a Samsung model by running 'getprop ro.product.brand' via ADBAffected if Brand returns Samsung or any Samsung-specific build (e.g., 'samsung')
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Locate libsaped librarySearch for libsaped on the device using 'find / -name libsaped* 2>/dev/null' or check common library paths like /vendor/lib, /system/lib via ADBAffected if libsaped library file is found on the device
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Determine libsaped versionRun 'strings [path_to_libsaped] | grep -i version' or use 'getprop ro.build.version.security_patch' to check the security patch levelAffected if Security patch level is earlier than November 2023 (SMR Nov-2023 Release 1)
A Samsung Android device running version 11.0, 12.0, or 13.0 with libsaped present and a security patch level before November 2023 is likely affected by this vulnerability.
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 libsaped to the SMR Nov-2023 Release 1 or later to obtain the patched version with proper input validation in get_head_crc.
SMR Nov-2023 Release 1
- Confirm the device is a Samsung Galaxy device running Android 11, 12, or 13
- Check the current SMR (Samsung Mobile Release) version in Settings > About phone > Software information > SMR (or SW version)
- If the SMR is earlier than 'Nov-2023 Release 1', navigate to Settings > Software update
- Download and install the November 2023 security update (SMR Nov-2023 Release 1)
- After installation, verify the SMR version reflects the November 2023 release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-42537 — 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-2023-42537 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
- No weaponised exploit code, or anything meant to cause harm
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