fix: possible crash if private.key is empty (#14208)

Before
```
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x9f54f7]

goroutine 1 [running]:
crypto/x509.IsEncryptedPEMBlock(...)
	crypto/x509/pem_decrypt.go:105
github.com/minio/minio/internal/config.LoadX509KeyPair({0xc00061e270, 0x0}, {0xc00061e2d0, 0x25})
	github.com/minio/minio/internal/config/certs.go:88 +0xf7
github.com/minio/pkg/certs.(*Manager).AddCertificate(0xc000576150, {0xc00061e270, 0x25}, {0xc00061e2d0, 0x25})
	github.com/minio/pkg@v1.1.15/certs/certs.go:132 +0x368
github.com/minio/pkg/certs.NewManager({0x51f5910, 0xc00053e140}, {0xc00061e270, 0xc000580400}, {0xc00061e2d0, 0x25}, 0x4dc5880)
	github.com/minio/pkg@v1.1.15/certs/certs.go:97 +0x170
github.com/minio/minio/cmd.getTLSConfig()
```

After
```
ERROR Unable to load the TLS configuration: The private key is not readable
      > Please check your certificate
```
This commit is contained in:
Harshavardhana 2022-01-30 12:55:21 -08:00 committed by GitHub
parent 57fad9148c
commit c39eb3bacd
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 29 additions and 0 deletions

View file

@ -85,6 +85,9 @@ func LoadX509KeyPair(certFile, keyFile string) (tls.Certificate, error) {
if len(rest) > 0 {
return tls.Certificate{}, ErrSSLUnexpectedData(nil).Msg("The private key contains additional data")
}
if key == nil {
return tls.Certificate{}, ErrSSLUnexpectedData(nil).Msg("The private key is not readable")
}
if x509.IsEncryptedPEMBlock(key) {
password := env.Get(EnvCertPassword, "")
if len(password) == 0 {

View file

@ -213,6 +213,32 @@ var loadX509KeyPairTests = []struct {
privateKey, certificate string
shouldFail bool
}{
{
password: "",
privateKey: "",
certificate: `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`,
shouldFail: true,
},
{
password: "foobar",
privateKey: `-----BEGIN RSA PRIVATE KEY-----