Trustlet crash via overflowing message length
Published Jun 26, 2023 · Updated Dec 4, 2024
Integer overflow in Widevine Trusted Application 5.0.0 through 7.1.1 allows local users to crash the trustlet via a crafted command. PRDiagParseAndStoreData adds an attacker-controlled message length to a path length as a signed integer, allowing wraparound to bypass its bounds check before memcpy writes beyond the destination buffer. Exploitation requires high privileges in Android's Normal World; the published proof of concept demonstrates a Secure World trustlet crash but not arbitrary code execution.
Summary
What happened
Integer overflow in Widevine Trusted Application 5.0.0 through 7.1.1 allows local users to crash the trustlet via a crafted command. PRDiagParseAndStoreData adds an attacker-controlled message length to a path length as a signed integer, allowing wraparound to bypass its bounds check before memcpy writes beyond the destination buffer. Exploitation requires high privileges in Android's Normal World; the published proof of concept demonstrates a Secure World trustlet crash but not arbitrary code execution.
The record
- CVE
- CVE-2022-48336
- Published
- Jun 26, 2023
- Updated
- Dec 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-190, T1404
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jun 26, 2023CVE publishedPublication date reported by the CVE source.
- Dec 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- PRDiagParseAndStoreData crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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