AndroidOperating system · Google

CVE-2024-25990

MEDIUM · 6.4 CVSS v3.1 Published 2024-03-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
66/100
Remediation priority · Elevated
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 pktproc_perftest_gen_rx_packet_sktbuf_mode of link_rx_pktproc.c, there is a possible out of bounds write due to a race condition. This could lead to local escalation of privilege with System 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 · moderate confidence

A race condition in the pktproc_perftest_gen_rx_packet_sktbuf_mode function in link_rx_pktproc.c leads to an out-of-bounds write vulnerability, which can be exploited for local privilege escalation to System level without user interaction.

MitigationFix requires adding proper synchronization primitives (locks/mutexes) around the packet buffer operations to prevent the race condition, along with bounds checking on buffer indices to prevent the out-of-bounds write.

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:= 13.0

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
Local
Complexity
High
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:H/PR:H/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 checks

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

  1. Check Android version
    Go to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via adb shell
    Affected if Version is exactly 13.0 (Android 13)
  2. Identify packet processing components
    Search for any installed applications or system services that utilize packet processing functionality, particularly those that may interact with 'sktbuf' or socket buffer mechanisms
    Affected if A custom packet processing application or service that uses the vulnerable pktproc_perftest_gen_rx_packet_sktbuf_mode function is installed and running
  3. Review system logs for crashes
    Run 'logcat -d' or check /data/logd/ for out-of-bounds write errors related to packet buffer operations
    Affected if Logs show crashes or errors mentioning out-of-bounds writes in packet processing code, particularly from link_rx_pktproc.c
  4. Check for privilege escalation indicators
    Review system audit logs (ausearch if enabled) or dmesg for any unexpected privilege escalation attempts or system-level process spawns from untrusted contexts
    Affected if Evidence exists of processes gaining System-level privileges unexpectedly, especially from packet processing contexts

A defender is affected if running Android 13.0 and has any custom packet processing components or services that implement the pktproc_perftest_gen_rx_packet_sktbuf_mode function from link_rx_pktproc.c, which would be vulnerable to local privilege escalation via the race condition.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Fix requires adding proper synchronization primitives (locks/mutexes) around the packet buffer operations to prevent the race condition, along with bounds checking on buffer indices to prevent the out-of-bounds write.

Fix this in Android Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
26.0 hours of engineering $4,580
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Scan for this in your stack

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dbcve dependency scanner

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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-2024-25990 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
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