Vulnerability Details CVE-2023-32058
Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, due to missing overflow check for loop variables, by assigning the iterator of a loop to a variable, it is possible to overflow the type of the latter. The issue seems to happen only in loops of type `for i in range(a, a + N)` as in loops of type `for i in range(start, stop)` and `for i in range(stop)`, the compiler is able to raise a `TypeMismatch` when trying to overflow the variable. The problem has been patched in version 0.3.8.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.8%
CVSS Severity
CVSS v3 Score 7.5
References
- https://github.com/vyperlang/vyper/commit/3de1415ee77a9244eb04bdb695e249d3ec9ed868
- https://github.com/vyperlang/vyper/security/advisories/GHSA-6r8q-pfpv-7cgj
- https://github.com/vyperlang/vyper/commit/3de1415ee77a9244eb04bdb695e249d3ec9ed868
- https://github.com/vyperlang/vyper/security/advisories/GHSA-6r8q-pfpv-7cgj
Products affected by CVE-2023-32058
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cpe:2.3:a:vyperlang:vyper:0.0.4
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cpe:2.3:a:vyperlang:vyper:0.1.0
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cpe:2.3:a:vyperlang:vyper:0.2.0
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cpe:2.3:a:vyperlang:vyper:0.2.1
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cpe:2.3:a:vyperlang:vyper:0.2.10
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cpe:2.3:a:vyperlang:vyper:0.2.11
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cpe:2.3:a:vyperlang:vyper:0.2.12
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cpe:2.3:a:vyperlang:vyper:0.2.13
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cpe:2.3:a:vyperlang:vyper:0.2.14
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cpe:2.3:a:vyperlang:vyper:0.2.15
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cpe:2.3:a:vyperlang:vyper:0.2.16
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cpe:2.3:a:vyperlang:vyper:0.2.2
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cpe:2.3:a:vyperlang:vyper:0.2.3
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cpe:2.3:a:vyperlang:vyper:0.2.4
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cpe:2.3:a:vyperlang:vyper:0.2.5
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cpe:2.3:a:vyperlang:vyper:0.2.6
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cpe:2.3:a:vyperlang:vyper:0.2.7
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cpe:2.3:a:vyperlang:vyper:0.2.8
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cpe:2.3:a:vyperlang:vyper:0.2.9
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cpe:2.3:a:vyperlang:vyper:0.3.0
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cpe:2.3:a:vyperlang:vyper:0.3.1
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cpe:2.3:a:vyperlang:vyper:0.3.2
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cpe:2.3:a:vyperlang:vyper:0.3.3
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cpe:2.3:a:vyperlang:vyper:0.3.4
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cpe:2.3:a:vyperlang:vyper:0.3.5
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cpe:2.3:a:vyperlang:vyper:0.3.6
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cpe:2.3:a:vyperlang:vyper:0.3.7