CVEvulnerability
CVE-2025-47436
6.0 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2025-05-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 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
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-122
Description
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 configurations
• apache orc (< 1.8.9)
• apache orc (>= 1.9.0 < 1.9.6)
• apache orc (>= 2.0.0 < 2.0.5)
• apache orc (>= 2.1.0 < 2.1.2)
Related
Weakness · CWE (1)
- CWE-122 Heap-based Buffer Overflow weakness
References
- https://lists.apache.org/thread/kd6tlv8fs5jybmsgxr4vrkdxyc866wrn Mailing List, Vendor Advisory
- https://orc.apache.org/security/CVE-2025-47436/ Third Party Advisory
- http://www.openwall.com/lists/oss-security/2025/05/13/4 Mailing List, Third Party Advisory