Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2023-46247 | First vendor Publication | 2023-12-13 |
| Vendor | Cve | Last vendor Modification | 2023-12-19 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | |||
|---|---|---|---|
| Overall CVSS Score | 7.5 | ||
| Base Score | 7.5 | Environmental Score | 7.5 |
| impact SubScore | 3.6 | Temporal Score | 7.5 |
| Exploitabality Sub Score | 3.9 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | None |
| Integrity Impact | High | Availability Impact | None |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : | |||
|---|---|---|---|
| Cvss Base Score | N/A | Attack Range | N/A |
| Cvss Impact Score | N/A | Attack Complexity | N/A |
| Cvss Expoit Score | N/A | Authentication | N/A |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM). Contracts containing large arrays might underallocate the number of slots they need by 1. Prior to v0.3.8, the calculation to determine how many slots a storage variable needed used `math.ceil(type_.size_in_bytes / 32)`. The intermediate floating point step can produce a rounding error if there are enough bits set in the IEEE-754 mantissa. Roughly speaking, if `type_.size_in_bytes` is large (> 2**46), and slightly less than a power of 2, the calculation can overestimate how many slots are needed by 1. If `type_.size_in_bytes` is slightly more than a power of 2, the calculation can underestimate how many slots are needed by 1. This issue is patched in version 0.3.8. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-46247 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 50 % | CWE-682 | Incorrect Calculation |
| 50 % | CWE-193 | Off-by-one Error |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 5 |
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2023-12-21 21:27:52 |
|
| 2023-12-14 00:27:22 |
|
