Local privilege escalation via unchecked da buffer write
Published Apr 1, 2024 · Updated Aug 1, 2024
Out-of-bounds write in the da component on affected MediaTek chipsets running Android 12.0 through 14.0 allows local users to elevate privileges. The component writes beyond a buffer because it omits a bounds check, although MediaTek has not disclosed the triggering input or code locus. Exploitation requires existing Android System execution privileges and no user interaction; successful use crosses an additional privilege boundary.
Summary
What happened
Out-of-bounds write in the da component on affected MediaTek chipsets running Android 12.0 through 14.0 allows local users to elevate privileges. The component writes beyond a buffer because it omits a bounds check, although MediaTek has not disclosed the triggering input or code locus. Exploitation requires existing Android System execution privileges and no user interaction; successful use crosses an additional privilege boundary.
The record
- CVE
- CVE-2024-20043
- Published
- Apr 1, 2024
- Updated
- Aug 1, 2024
- Vendor
- MediaTek
- Product
- MT8173
- Classifications
- CWE-703, CWE-787, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Apr 1, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=android_12.0 <=android_14.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
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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