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AndroidOperating system · Google

CVE-2023-21224

HIGH · 7.5 CVSS v3.1 Published 2023-06-28
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

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 · unedited
In ss_ProcessReturnResultComponent of ss_MmConManagement.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-265276966References: 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 confidence

Heap buffer overflow in ss_ProcessReturnResultComponent of ss_MmConManagement.c in the Android kernel allows an out-of-bounds read, enabling remote information disclosure without requiring additional execution privileges or user interaction.

MitigationApply Android kernel security patches addressing this vulnerability; update to the latest Android kernel version that includes the fix for A-265276966.

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
AndroidOperating system
Affected:all versions

CVSS 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
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Android kernel version
    Run 'uname -r' or check /proc/version to retrieve the kernel version string
    Affected if The kernel version is an unpatched release that predates the A-265276966 fix
  2. Check if ss_MmConManagement.c exists in kernel
    Search the kernel source tree or /proc/kallsyms for symbols related to 'ss_ProcessReturnResultComponent' or 'ss_MmConManagement'
    Affected if The vulnerable function ss_ProcessReturnResultComponent is present in the running kernel
  3. Verify the vulnerable code path is present
    Examine the kernel build or vmlinux for the ss_ProcessReturnResultComponent function and check its implementation for the bounds-check vulnerability
    Affected if The function contains the flawed buffer handling logic without the fix for CVE-2023-21224
  4. Determine if the affected subsystem is active
    Check kernel config or loaded modules for any multimedia or connection management components that invoke the ss_ProcessReturnResultComponent function
    Affected if The subsystem that uses ss_ProcessReturnResultComponent is enabled and operational on the device

The device is affected if it runs an Android kernel version that lacks the A-265276966 patch and contains the vulnerable ss_ProcessReturnResultComponent function in ss_MmConManagement.c with the unfixed heap buffer overflow.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Android kernel security patches addressing this vulnerability; update to the latest Android kernel version that includes the fix for A-265276966.

Recommended fix High confidence

October 2023 Android Security Patch Level

  1. Apply the October 2023 Android Security Patch Level (SPL) or later to the device
  2. Verify the device's security patch level is October 2023 or later via Settings > About Phone > Android version or Settings > Security > Security patch level
  3. For enterprise-managed devices, ensure the mobile device management (MDM) policy pushes the October 2023 or later security update

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Android Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-21224 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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