Comments (1)
Crash happens in the ContentInfo
constructor
public class ContentInfo
{
public Asn1Node Content { get; }
public string ContentType { get; }
public ContentInfo(byte[] data)
: this(Asn1Node.ReadNode(data)) {} // <-- Crash! Problem seems to be in Asn1Node.ReadNode(...)
public ContentInfo(Asn1Node asn1)
{
var nodes = asn1.Nodes;
// SEQUENCE with 1 or 2 elements
if ((asn1.NodeType != Asn1UniversalNodeType.Sequence) || (nodes.Count < 1 && nodes.Count > 2))
throw new ArgumentException("Invalid ASN1");
if (!(nodes[0] is Asn1ObjectIdentifier))
throw new ArgumentException("Invalid contentType");
ContentType = ((Asn1ObjectIdentifier) nodes[0]).FriendlyName;
if (nodes.Count <= 1) return;
if (nodes[1].TagClass != Asn1TagClass.ContextDefined || nodes[1].TagForm != Asn1TagForm.Constructed)
throw new ArgumentException("Invalid content");
Content = nodes[1];
}
}
The problem seems not to be in PeNet but in the Asn1 library it uses to parse the certificate data. The issue PeNet.Asn1 Issue 10 handles the bug.
from penet.
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from penet.