CVE-2024-43077
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 DevmemValidateFlags of devicemem_server.c , there is a possible out of bounds write due to memory corruption. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
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 memory corruption vulnerability in the Linux kernel's device memory subsystem (devicemem_server.c) allows a local attacker to write out-of-bounds memory through the DevmemValidateFlags function, enabling local privilege escalation without requiring additional execution privileges or user interaction.
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 dataall versionsCVSS 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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Confirm the operating system is AndroidRun 'getprop ro.build.version.release' or check /system/build.prop for the Android versionAffected if The system runs any version of Google Android (all versions are affected per vendor advisory)
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Identify the Linux kernel versionRun 'uname -r' or check /proc/version to retrieve the kernel version stringAffected if Kernel versions that have not received the CVE-2024-43077 patch are vulnerable; compare against vendor security bulletins
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Verify devicemem subsystem is accessibleCheck for /dev/mem, /dev/kmem, or devicemask-related entries in /proc/ioports or /proc/iomem; also check if CONFIG_DEVKMEM is enabled via 'zcat /proc/config.gz' or check /boot/config-*Affected if The device memory interface (/dev/mem or similar) is exposed and accessible to the local user, enabling the attack surface
If the system is Google Android and the devicemem interface is accessible, the environment is affected since all Android versions contain the vulnerable Linux kernel devicemem subsystem.
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 corresponding Linux kernel security patch or update to the affected kernel version; this typically requires a system reboot to load the patched kernel.
Latest Android security patch level as indicated in the source.android.com security bulletin for CVE-2024-43077
- Check the Android Security Bulletin on source.android.com for CVE-2024-43077 to identify the specific Android version containing the fix
- Apply the latest Android security patch level for your device from your device manufacturer's update channel
- Verify the fix has been applied by checking Settings > About Phone > Security Patch Level on the device
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-43077 — 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-2024-43077 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