Memory exhaustion via unchecked NCM length fields
Published May 20, 2024 · Updated Feb 13, 2025
Uncontrolled resource consumption in TaurusXin ncmdump 1.3.2 allows remote attackers to exhaust memory with a crafted .ncm file. The NeteaseCrypt constructor trusts embedded size fields when allocating key, metadata, and image buffers without checking them against the remaining file length. Exploitation requires an affected command or service to process the supplied file, resulting in process failure or host-level service interruption.
Summary
What happened
Uncontrolled resource consumption in TaurusXin ncmdump 1.3.2 allows remote attackers to exhaust memory with a crafted .ncm file. The NeteaseCrypt constructor trusts embedded size fields when allocating key, metadata, and image buffers without checking them against the remaining file length. Exploitation requires an affected command or service to process the supplied file, resulting in process failure or host-level service interruption.
The record
- CVE
- CVE-2024-34953
- Published
- May 20, 2024
- Updated
- Feb 13, 2025
- Vendor
- TaurusXin
- Product
- ncmdump
- Classifications
- CWE-400, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 20, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 2025Record 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=1.3.2
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.
Public exploit references
- ncmdump memory-exhaustion proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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