Vulnerability Details CVE-2024-24560
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. When calls to external contracts are made, we write the input buffer starting at byte 28, and allocate the return buffer to start at byte 0 (overlapping with the input buffer). When checking RETURNDATASIZE for dynamic types, the size is compared only to the minimum allowed size for that type, and not to the returned value's length. As a result, malformed return data can cause the contract to mistake data from the input buffer for returndata. When the called contract returns invalid ABIv2 encoded data, the calling contract can read different invalid data (from the dirty buffer) than the called contract returned.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 69.7%
CVSS Severity
CVSS v3 Score 3.7
References
Products affected by CVE-2024-24560
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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:0.3.10
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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
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cpe:2.3:a:vyperlang:vyper:0.3.8
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cpe:2.3:a:vyperlang:vyper:0.3.9