Add advisory for libflate

crates/libflate/RUSTSEC-0000-0000.toml

@@ -0,0 +1,17 @@
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "libflate"
+date = "2019-07-04"
+title = "MultiDecoder::read() drops uninitialized memory of arbitrary type if client code panics"
+description = """
+Affected versions of libflate have set a field of an internal structure with a generic type to an uninitialized value in `MultiDecoder::read()` and reverted it to the original value after the function completed. However, execution of `MultiDecoder::read()` could be interrupted by a panic in caller-supplied `Read` implementation. This would cause `drop()` to be called on uninitialized memory of a generic type implementing `Read`. 
+
+This is equivalent to a use-after-free vulnerability and could allow an attacker to gain arbitrary code execution.
+ 
+The flaw was corrected by aborting immediately instead of unwinding the stack in case of panic within `MultiDecoder::read()`. The issue was discovered and fixed by Shnatsel.
+"""
+patched_versions = [">= 0.1.25"]
+unaffected_versions = ["< 0.1.14"]
+url = "https://github.com/sile/libflate/issues/35"
+keywords = ["drop", "use-after-free"]
+affected_functions = ["libflate::gzip::MultiDecoder::read"]