CVE-2022-42527
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 cd_SsParseMsg of cd_SsCodec.c, there is a possible crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-244448906References: N/A
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 null check in the cd_SsParseMsg function of cd_SsCodec.c in the Android kernel can cause a null pointer dereference, leading to a system crash and denial of service. The vulnerability can be exploited remotely without requiring additional 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Identify Android kernel versionRun 'uname -r' on the device or check Settings > About Phone > Kernel Version to obtain the running kernel versionAffected if The kernel version is older than the version containing the CVE-2022-42527 patch (kernel versions prior to the fix contain the vulnerable cd_SsParseMsg function in cd_SsCodec.c)
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Check if cd_SsCodec module is presentSearch for cd_SsCodec.c or cd_SsCodec in the kernel source tree, or check for loaded codec modules using 'lsmod' if the module is loadableAffected if The cd_SsCodec component exists in the kernel build and the cd_SsParseMsg function is present without the null check fix
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Verify kernel configuration for codec supportCheck kernel config for CONFIG_CD_SS_CODEC or similar codec configuration options in /boot/config-<version> or through 'zcat /proc/config.gz' if availableAffected if The kernel has the cd_SsCodec feature enabled, making the vulnerable code path reachable
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Review kernel patch statusCompare the installed kernel source or binary against the CVE fix commit for cd_SsParseMsg in cd_SsCodec.c - look for null pointer validation added after the vulnerability was disclosedAffected if The kernel source or module lacks the null check additions to cd_SsParseMsg that address the CVE
The environment is affected if the Android kernel version predates the CVE-2022-42527 patch and the cd_SsCodec component with the vulnerable cd_SsParseMsg function is present and enabled.
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 dataAdd proper null pointer validation in the cd_SsParseMsg function before dereferencing any pointers, and ensure the fix is delivered through Android kernel security updates.
- Consultation2.0 h
- Implementation4.0 h
- Testing8.0 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 $4,288.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-42527 — 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-2022-42527 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
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