CVE-2020-0067

Kernel-memory disclosure via corrupted F2FS attributes

Published Apr 17, 2020 · Updated Aug 4, 2024

Out-of-bounds read in the Android kernel allows local users with System privileges to disclose kernel memory through corrupted F2FS attributes. The f2fs_listxattr path trusts a corrupted extended-attribute name length and copies name data without confirming that the entry remains inside the attribute area. Exploitation requires local System privileges and corrupted F2FS attribute metadata; no user interaction is required, and the reported impact is disclosure only.

CVSS severity4.4
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the Android kernel allows local users with System privileges to disclose kernel memory through corrupted F2FS attributes. The f2fs_listxattr path trusts a corrupted extended-attribute name length and copies name data without confirming that the entry remains inside the attribute area. Exploitation requires local System privileges and corrupted F2FS attribute metadata; no user interaction is required, and the reported impact is disclosure only.

The record

CVE
CVE-2020-0067
Published
Apr 17, 2020
Updated
Aug 4, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-125, T1005
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 17, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google Cloud · Androidversion=Android kernel

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N
4.4Ubuntu Security TeamCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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