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45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package rules
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import (
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"go/ast"
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"github.com/securego/gosec/v2"
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"github.com/securego/gosec/v2/issue"
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)
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type usingOldMathBig struct {
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issue.MetaData
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calls gosec.CallList
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}
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func (r *usingOldMathBig) ID() string {
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return r.MetaData.ID
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}
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func (r *usingOldMathBig) Match(node ast.Node, ctx *gosec.Context) (gi *issue.Issue, err error) {
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if callExpr := r.calls.ContainsPkgCallExpr(node, ctx, false); callExpr == nil {
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return nil, nil
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}
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confidence := issue.Low
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major, minor, build := gosec.GoVersion()
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if major == 1 && (minor == 16 && build < 14 || minor == 17 && build < 7) {
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confidence = issue.Medium
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}
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return ctx.NewIssue(node, r.ID(), r.What, r.Severity, confidence), nil
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}
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// NewUsingOldMathBig rule detects the use of Rat.SetString from math/big.
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func NewUsingOldMathBig(id string, _ gosec.Config) (gosec.Rule, []ast.Node) {
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calls := gosec.NewCallList()
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calls.Add("math/big.Rat", "SetString")
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return &usingOldMathBig{
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calls: calls,
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MetaData: issue.MetaData{
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ID: id,
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What: "Potential uncontrolled memory consumption in Rat.SetString (CVE-2022-23772)",
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Severity: issue.High,
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},
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}, []ast.Node{(*ast.CallExpr)(nil)}
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}
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