GHSA-7vrm-3jc8-5wwm
Suggest an improvement- Source
- https://github.com/advisories/GHSA-7vrm-3jc8-5wwm
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/04/GHSA-7vrm-3jc8-5wwm/GHSA-7vrm-3jc8-5wwm.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/GHSA-7vrm-3jc8-5wwm
- Aliases
- Related
- Published
- 2022-04-04T21:40:45Z
- Modified
- 2024-12-05T05:39:26.407553Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- Incorrect Comparison in Vyper
- Details
-
Impact
bytestrings can have dirty bytes in them, resulting in the word-for-word comparison to give incorrect results, e.g.
b1: Bytes[32] = b"abcdef" b1 = slice(b1, 0, 1) b2: Bytes[32] = b"abcdef" t: bool = b1 == b2 # incorrectly evaluates to Trueeven without dirty nonzero bytes, because there is no comparison of the length, two bytestrings can compare to equal if one ends with
"\x00".b1: Bytes[32] = b"abc\0" b2: Bytes[32] = b"abc" t: bool = b1 == b2 # incorrectly evaluates to TruePatches
fixed in https://github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508
- Database specific
{ "nvd_published_at": null, "cwe_ids": [ "CWE-697" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2022-04-04T21:40:45Z" }- References
Affected packages
PyPI / vyper
Package
- Name
- vyper
- View open source insights on deps.dev
- Purl
- pkg:pypi/vyper