diff options
Diffstat (limited to 'main/libtasn1/CVE-2015-3622.patch')
| -rw-r--r-- | main/libtasn1/CVE-2015-3622.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/main/libtasn1/CVE-2015-3622.patch b/main/libtasn1/CVE-2015-3622.patch new file mode 100644 index 0000000000..b14b042983 --- /dev/null +++ b/main/libtasn1/CVE-2015-3622.patch @@ -0,0 +1,44 @@ +From f979435823a02f842c41d49cd41cc81f25b5d677 Mon Sep 17 00:00:00 2001 +From: Nikos Mavrogiannopoulos <nmav@redhat.com> +Date: Mon, 20 Apr 2015 14:56:27 +0200 +Subject: [PATCH] _asn1_extract_der_octet: prevent past of boundary access +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf8 +Content-Transfer-Encoding: 8bit + +Reported by Hanno Böck. +--- + lib/decoding.c | 3 ++- + 1 files changed, 2 insertions(+), 1 deletions(-) + +diff --git a/lib/decoding.c b/lib/decoding.c +index 7fbd931..42ddc6b 100644 +--- a/lib/decoding.c ++++ b/lib/decoding.c +@@ -732,6 +732,7 @@ _asn1_extract_der_octet (asn1_node node, const unsigned char *der, + return ASN1_DER_ERROR; + + counter = len3 + 1; ++ DECR_LEN(der_len, len3); + + if (len2 == -1) + counter_end = der_len - 2; +@@ -740,6 +741,7 @@ _asn1_extract_der_octet (asn1_node node, const unsigned char *der, + + while (counter < counter_end) + { ++ DECR_LEN(der_len, 1); + len2 = asn1_get_length_der (der + counter, der_len, &len3); + + if (IS_ERR(len2, flags)) +@@ -764,7 +766,6 @@ _asn1_extract_der_octet (asn1_node node, const unsigned char *der, + len2 = 0; + } + +- DECR_LEN(der_len, 1); + counter += len2 + len3 + 1; + } + +-- +1.7.2.5 + |