Heap-based buffer overflow in ORC - CVE-2025-47436
Published: August 5, 2025
Vulnerability identifier: #VU113619
CSH Severity: Low
CVSS v4.0: 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:U/U:Clear
CVE-ID: CVE-2025-47436
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
ORC
ORC
Detailed vulnerability description
The vulnerability allows a local privileged user to cause memory corruption.
The vulnerability exists due to a boundary error 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. A local privileged user can pass specially crafted data to the application, trigger a heap-based buffer overflow and cause memory corruption.
How to mitigate CVE-2025-47436
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..