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CVE-2025-29476

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Date: April 3, 2025

Buffer Overflow vulnerability in compress_chunk_fuzzer with oss-fuzz on commit 16450518afddcb3139de627157208e49bfef6987 in c-blosc2 v.2.17.0 and before.

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2025-29476
https://github.com/lmarch2/poc/blob/main/c-blosk2/c-blosk2.md
https://github.com/Blosc/c-blosc2/issues/656
https://www.mend.io/vulnerability-database/CVE-2025-29476

Severity Score

Weakness Type (CWE)

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

Top Fix

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Upgrade Version

Upgrade to version https://github.com/Blosc/c-blosc2.git - v2.17.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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