commit 9a95d7fab76b59d6e560cd1751d1fcfea19dc799
author Kazuho Oku <kazuhooku@gmail.com> Mon Nov 28 13:38:14 2022 +0900
committer Kazuho Oku <kazuhooku@gmail.com> Mon Nov 28 13:38:14 2022 +0900
tree 1794610ce67c1c07a6a292e7681658c2ec8fb83f
parent 89779c48f4b14e992866201973c16e356a0966be

enc is at least one byte

lib/picotls.c

diff --git a/lib/picotls.c b/lib/picotls.c
index db47671..f1face7 100644
--- a/lib/picotls.c
+++ b/lib/picotls.c
@@ -1022,6 +1022,10 @@
         }
     }
     ptls_decode_open_block(*src, end, 2, {
+        if (*src == end) {
+            ret = PTLS_ALERT_DECODE_ERROR;
+            goto Exit;
+        }
         decoded->public_key = ptls_iovec_init(*src, end - *src);
         *src = end;
     });