Related Vulnerabilities: CVE-2020-28362  

A flaw was found in go before 1.15.5 where a number of math/big.Int methods (Div, Exp, DivMod, Quo, Rem, QuoRem, Mod, ModInverse, ModSqrt, Jacobi, and GCD) can panic when provided crafted large inputs. For the panic to happen, the divisor or modulo argument must be larger than 3168 bits (on 32-bit architectures) or 6336 bits (on 64-bit architectures). Multiple math/big.Rat methods are similarly affected.

Severity Low

Remote No

Type Denial of service

Description

A flaw was found in go before 1.15.5 where a number of math/big.Int methods (Div, Exp, DivMod, Quo, Rem, QuoRem, Mod, ModInverse, ModSqrt, Jacobi, and GCD) can panic when provided crafted large inputs. For the panic to happen, the divisor or modulo argument must be larger than 3168 bits (on 32-bit architectures) or 6336 bits (on 64-bit architectures). Multiple math/big.Rat methods are similarly affected.

AVG-1278 go 2:1.15.4-1 2:1.15.5-1 High Fixed

https://github.com/golang/go/commit/84150d0af193a7ccd733b3c7fa5787f43125cd2d
https://github.com/golang/go/issues/42554