diff options
Diffstat (limited to 'external/openssl/CVE-2014-0221.patch')
| -rw-r--r-- | external/openssl/CVE-2014-0221.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/external/openssl/CVE-2014-0221.patch b/external/openssl/CVE-2014-0221.patch new file mode 100644 index 000000000000..68186f742908 --- /dev/null +++ b/external/openssl/CVE-2014-0221.patch @@ -0,0 +1,34 @@ +commit d30e582446b027868cdabd0994681643682045a4 +Author: Dr. Stephen Henson <steve@openssl.org> +Date: Fri May 16 13:00:45 2014 +0100 + + Fix CVE-2014-0221 + + Unnecessary recursion when receiving a DTLS hello request can be used to + crash a DTLS client. Fixed by handling DTLS hello request without recursion. + + Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. + +diff --git a/a/ssl/d1_both.c b/b/ssl/d1_both.c +index 07f67f8..4c2fd03 100644 +--- a/a/ssl/d1_both.c ++++ b/b/ssl/d1_both.c +@@ -793,6 +793,7 @@ dtls1_get_message_fragment(SSL *s, int st1, int stn, long max, int *ok) + int i,al; + struct hm_header_st msg_hdr; + ++ redo: + /* see if we have the required fragment already */ + if ((frag_len = dtls1_retrieve_buffered_fragment(s,max,ok)) || *ok) + { +@@ -851,8 +852,7 @@ dtls1_get_message_fragment(SSL *s, int st1, int stn, long max, int *ok) + s->msg_callback_arg); + + s->init_num = 0; +- return dtls1_get_message_fragment(s, st1, stn, +- max, ok); ++ goto redo; + } + else /* Incorrectly formated Hello request */ + { + |