Denial of service via encoding race condition
Published Dec 7, 2021 · Updated Aug 4, 2024
Race condition in Huawei HarmonyOS 2.0 allows remote attackers to cause denial of service through an encoding-timing flaw. Huawei has not published the affected component, the encoding operation involved, or how attacker-controlled input reaches the timing race. Exploitation is unauthenticated and network-reachable but requires a difficult-to-control race, and the documented consequence is limited to service interruption.
Summary
What happened
Race condition in Huawei HarmonyOS 2.0 allows remote attackers to cause denial of service through an encoding-timing flaw. Huawei has not published the affected component, the encoding operation involved, or how attacker-controlled input reaches the timing race. Exploitation is unauthenticated and network-reachable but requires a difficult-to-control race, and the documented consequence is limited to service interruption.
The record
- CVE
- CVE-2021-37085
- Published
- Dec 7, 2021
- Updated
- Aug 4, 2024
- Vendor
- Huawei Technologies Co., Ltd.
- Product
- HarmonyOS
- Classifications
- CWE-362, T1642
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 7, 2021CVE 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
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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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