Local information disclosure via integer-overflowed buffer bounds
Published Dec 17, 2021 · Updated Aug 3, 2024
Integer overflow in the ccu driver on affected MediaTek chipsets running Android 11 allows local users with System privileges to disclose information. The driver uses an overflowed integer while determining buffer bounds, causing an out-of-bounds read in the ccu driver. Exploitation requires local System execution privileges and no user interaction; the documented consequence is limited to information disclosure.
Summary
What happened
Integer overflow in the ccu driver on affected MediaTek chipsets running Android 11 allows local users with System privileges to disclose information. The driver uses an overflowed integer while determining buffer bounds, causing an out-of-bounds read in the ccu driver. Exploitation requires local System execution privileges and no user interaction; the documented consequence is limited to information disclosure.
The record
- CVE
- CVE-2021-0677
- Published
- Dec 17, 2021
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-190
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Dec 17, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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.
Weakness, pattern, technique
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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