Vulnerability Details : CVE-2022-24787
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. In version 0.3.1 and prior, bytestrings can have dirty bytes in them, resulting in the word-for-word comparisons giving incorrect results. Even without dirty nonzero bytes, two bytestrings can compare to equal if one ends with `"\x00"` because there is no comparison of the length. A patch is available and expected to be part of the 0.3.2 release. There are currently no known workarounds.
Products affected by CVE-2022-24787
- cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-24787
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-24787
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2022-24787
-
The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2022-24787
-
https://github.com/vyperlang/vyper/commit/2c73f8352635c0a433423a5b94740de1a118e508
Merge pull request from GHSA-7vrm-3jc8-5wwm · vyperlang/vyper@2c73f83 · GitHubPatch;Third Party Advisory
-
https://github.com/vyperlang/vyper/security/advisories/GHSA-7vrm-3jc8-5wwm
bytestring equality incorrect for Bytes[N<=32] · Advisory · vyperlang/vyper · GitHubPatch;Third Party Advisory
Jump to