CVE-2025-47436

published 2025-05-14

CVE-2025-47436: Heap-based Buffer Overflow vulnerability in Apache ORC. A vulnerability has been identified in the ORC C++ LZO decompression logic, where specially crafted…

Priority P3 54 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

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.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
apache	orc	< 1.8.9	1.8.9
apache	orc	>= 1.9.0 < 1.9.6	1.9.6
apache	orc	>= 2.0.0 < 2.0.5	2.0.5
apache	orc	>= 2.1.0 < 2.1.2	2.1.2
apache_software_foundation	apache_orc	<= 1.8.8	—
apache_software_foundation	apache_orc	1.9.0 – 1.9.5	—
apache_software_foundation	apache_orc	2.0.0 – 2.0.4	—
apache_software_foundation	apache_orc	2.1.0 – 2.1.1	—

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v4.0 6.0 MEDIUM CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:X/R:X/V:X/RE:M/U:Amber

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CWE-122