CVE-2023-26557 (tss-lib) | allinfosecnews.com

April 21, 2023, 6:15 p.m. |

National Vulnerability Database web.nvd.nist.gov

io.finnet tss-lib before 2.0.0 can leak the lambda value of a private key via a timing side-channel attack because it relies on Go big.Int, which is not constant time for Cmp, modular exponentiation, or modular inverse. An example leak is in crypto/paillier/paillier.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)

attack big bnb channel crypto cve key lambda leak modular private private key side-channel side-channel attack value

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