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authorDr. Stephen Henson <steve@openssl.org>2012-01-04 15:38:54 +0000
committerDr. Stephen Henson <steve@openssl.org>2012-01-04 15:38:54 +0000
commit8206dba75c7fc1a5274b3a9f8ddc4e77cf34669d (patch)
tree884f4e17d41f5eeb6a4570ae37abe02cec7105f7 /ssl/s3_enc.c
parent528ef87850f54676d13ff17d40a166cf8f127331 (diff)
Clear bytes used for block padding of SSL 3.0 records. (CVE-2011-4576) [include source patch this time!]
Diffstat (limited to 'ssl/s3_enc.c')
-rw-r--r--ssl/s3_enc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/ssl/s3_enc.c b/ssl/s3_enc.c
index 58386e1ba0..b14597076d 100644
--- a/ssl/s3_enc.c
+++ b/ssl/s3_enc.c
@@ -511,6 +511,9 @@ int ssl3_enc(SSL *s, int send)
/* we need to add 'i-1' padding bytes */
l+=i;
+ /* the last of these zero bytes will be overwritten
+ * with the padding length. */
+ memset(&rec->input[rec->length], 0, i);
rec->length+=i;
rec->input[l-1]=(i-1);
}