7.5

CVE-2023-30837

Exploit

Vyper storage allocator overflow

Vyper is a pythonic smart contract language for the EVM. The storage allocator does not guard against allocation overflows in versions prior to 0.3.8. An attacker can overwrite the owner variable. This issue was fixed in version 0.3.8.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Vyperlang ≫ Vyper Version < 0.3.8
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.7% 0.482
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-789 Memory Allocation with Excessive Size Value

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

https://github.com/vyperlang/vyper/commit/0bb7203b584e771b23536ba065a6efda457161bb
Patch
https://github.com/vyperlang/vyper/security/advisories/GHSA-mgv8-gggw-mrg6
Vendor Advisory
Exploit