Remote service interruption via unchecked data size
Published Dec 28, 2024 · Updated Dec 28, 2024
Improper input validation in Huawei HarmonyOS 2.0 wearables allows remote attackers to exhaust server memory via crafted data. The wearable data-reading path fails to verify the actual data size before reading, permitting attacker-controlled input to consume memory until an out-of-memory condition occurs. No authentication or user interaction is required, and the documented consequence is service interruption rather than data disclosure or modification.
Summary
What happened
Improper input validation in Huawei HarmonyOS 2.0 wearables allows remote attackers to exhaust server memory via crafted data. The wearable data-reading path fails to verify the actual data size before reading, permitting attacker-controlled input to consume memory until an out-of-memory condition occurs. No authentication or user interaction is required, and the documented consequence is service interruption rather than data disclosure or modification.
The record
- CVE
- CVE-2021-22484
- Published
- Dec 28, 2024
- Updated
- Dec 28, 2024
- Vendor
- MindSpore
- Product
- HarmonyOS
- Classifications
- CWE-20, CWE-125, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 28, 2024CVE publishedPublication date reported by the CVE source.
- Dec 28, 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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- Affected versionversion=2.0
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.
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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