VDB
ALPINE-CVE-2021-3177
ALPINE-CVE-2021-3177
PUBLISHED
CVSS 9.800000190734863 CRITICAL
Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used unsafely.
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.21 | python3 | 0, 0, 3.8.7-r1 |
| Alpine:v3.14 | python3 | 3.5.2-r0, 3.5.1-r0, 3.5.0-r0 |
| Alpine:v3.22 | python3 | 3.8.4-r0, 3.6.2-r0, 3.3.3-r0 |
| Alpine:v3.13 | python3 | 3.8.1-r3, 3.8.5-r1, 3.8.5-r0 |
| Alpine:v3.18 | python3 | 3.5.1-r0, 3.5.1-r2, 3.5.1-r3 |
| Alpine:v3.17 | python3 | 3.8.7-r0, 3.8.6-r0, 3.8.5-r2 |
| Alpine:v3.12 | python3 | 3.4.2-r1, 3.8.0-r0, 3.8.1-r0 |
| Alpine:v3.10 | python3 | 3.5.2-r5, 3.1.3-r0, 3.2.0-r0 |
| Alpine:v3.24 | python3 | 0, 0 |
| Alpine:v3.19 | python3 | 3.6.1-r3, 3.6.1-r2, 3.6.1-r1 |
| Alpine:v3.11 | python3 | 3.4.2-r0, 3.3.3-r0, 3.3.2-r0 |
| Alpine:v3.15 | python3 | 3.6.6-r3, 3.6.6-r0, 3.6.4-r1 |
| Alpine:v3.20 | python3 | 3.6.6-r2, 0, 0 |
| Alpine:v3.23 | python3 | 3.6.3-r9, 0, 3.1.3-r0 |
| Alpine:v3.16 | python3 | 3.5.2-r4, 3.5.1-r0, 3.5.1-r2 |
Timeline
- Jan 19, 2021 CVE Published
- Jun 15, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch