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CVE-2025-47436

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Date: May 14, 2025

Heap-based Buffer Overflow vulnerability in Apache ORC. A vulnerability has been identified in the ORC C++ LZO decompression logic, where specially crafted malformed ORC files can cause the decompressor to allocate a 250-byte buffer but then attempts to copy 295 bytes into it. It causes memory corruption. This issue affects Apache ORC C++ library: through 1.8.8, from 1.9.0 through 1.9.5, from 2.0.0 through 2.0.4, from 2.1.0 through 2.1.1. Users are recommended to upgrade to version 1.8.9, 1.9.6, 2.0.5, and 2.1.2, which fix the issue.

Severity Score

Severity Score

Weakness Type (CWE)

Heap-based Buffer Overflow

CWE-122

Top Fix

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Upgrade Version

Upgrade to version https://github.com/apache/orc.git - v2.1.2;https://github.com/apache/orc.git - v2.0.5;https://github.com/apache/orc.git - v1.9.6;https://github.com/apache/orc.git - v1.8.9;https://github.com/apache/orc.git - rel/release-2.1.2;https://github.com/apache/orc.git - rel/release-2.0.5;https://github.com/apache/orc.git - rel/release-1.9.6;https://github.com/apache/orc.git - rel/release-1.8.9

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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