CVE-2024-34704 | BDVDB-2026-235421 Detail

Description#

era-compiler-solidity is the ZKsync compiler for Solidity. The problem occurred during instruction selection in the `DAGCombine` phase while visiting the XOR operation. The issue arises when attempting to fold the expression `!(x cc y)` into `(x !cc y)`. To perform this transformation, the second operand of XOR should be a constant representing the true value. However, it was incorrectly assumed that -1 represents the true value, when in fact, 1 is the correct representation, so this transformation for this case should be skipped. This vulnerability is fixed in 1.4.1.

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History#

1. Version 12024-05-13Record published in the CVE List.
2. Version 22024-08-02Most recent update recorded in the CVE List.