A heap-based buffer over-read was discovered in the acc_ua_get_be32 function in miniacc.h in UPX 4.0.0 via a crafted Mach-O file.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade upx | Aug 22, 2024 | Aug 25, 2022 |
| Debian | — | Upgrade upx-uclNo solution exists | May 15, 2025 | Aug 25, 2022 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Aug 25, 2022 |
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