Local memory disclosure via NDEF length overflow
Published Jun 11, 2020 · Updated Aug 4, 2024
An out-of-bounds read in Android 10's NDEF_MsgValidate function allows local users to disclose memory through malformed NFC tag data. The validator performs overflowing length arithmetic while parsing an NDEF record, allowing its bounds check to accept a read beyond the message buffer. Exploitation requires System execution privileges and firmware-supplied malformed NFC data; no user interaction is needed, and the bounded consequence is memory disclosure.
Summary
What happened
An out-of-bounds read in Android 10's NDEF_MsgValidate function allows local users to disclose memory through malformed NFC tag data. The validator performs overflowing length arithmetic while parsing an NDEF record, allowing its bounds check to accept a read beyond the message buffer. Exploitation requires System execution privileges and firmware-supplied malformed NFC data; no user interaction is needed, and the bounded consequence is memory disclosure.
The record
- CVE
- CVE-2020-0139
- Published
- Jun 11, 2020
- Updated
- Aug 4, 2024
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-125, CWE-190
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jun 11, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Android-10
What conditions does exploitation require?
What is affected?
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.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo