diff --git a/crates/asn1_der/RUSTSEC-0000-0000.toml b/crates/asn1_der/RUSTSEC-0000-0000.toml
new file mode 100644
index 0000000..7585508
--- /dev/null
+++ b/crates/asn1_der/RUSTSEC-0000-0000.toml
@@ -0,0 +1,22 @@
+[advisory]
+id = "RUSTSEC-0000-0000"
+
+package = "asn1_der"
+
+date = "2019-06-13"
+
+title = "Processing of maliciously crafted length fields causes memory allocation SIGABRTs"
+
+description = """
+Affected versions of this crate tried to preallocate a vector for an arbitrary amount of bytes announced by the ASN.1-DER length field without further checks.
+
+This allows an attacker to trigger a SIGABRT by creating length fields that announce more bytes than the allocator can provide.
+ 
+The flaw was corrected by not preallocating memory.
+"""
+
+patched_versions = [">= 0.6.2"]
+
+url = "https://github.com/KizzyCode/asn1_der/issues/1"
+
+keywords = ["dos"]