Jacek Caban : crypt32: Fixed decoded size calculation in CRYPT_AsnDecodeSequence when indefinite length is used.
Module: wine Branch: master Commit: 2a2ecdd564609e8ae68d66ff598cd62e0551bc46 URL: https://source.winehq.org/git/wine.git/?a=commit;h=2a2ecdd564609e8ae68d66ff5...
Author: Jacek Caban jacek@codeweavers.com Date: Thu Feb 1 01:27:53 2018 +0100
crypt32: Fixed decoded size calculation in CRYPT_AsnDecodeSequence when indefinite length is used.
Signed-off-by: Jacek Caban jacek@codeweavers.com Signed-off-by: Alexandre Julliard julliard@winehq.org
---
dlls/crypt32/decode.c | 1 + dlls/crypt32/tests/encode.c | 105 +++++++++++++++++++++++++++++++++++++++----- 2 files changed, 94 insertions(+), 12 deletions(-)
diff --git a/dlls/crypt32/decode.c b/dlls/crypt32/decode.c index 7d65912..8b84388 100644 --- a/dlls/crypt32/decode.c +++ b/dlls/crypt32/decode.c @@ -479,6 +479,7 @@ static BOOL CRYPT_AsnDecodeSequence(struct AsnDecodeSequenceItem items[], { dataLen = cbEncoded; indefinite = TRUE; + lenBytes += 2; } else if (cbEncoded < dataLen) { diff --git a/dlls/crypt32/tests/encode.c b/dlls/crypt32/tests/encode.c index 53ec20b..a4daec0 100644 --- a/dlls/crypt32/tests/encode.c +++ b/dlls/crypt32/tests/encode.c @@ -3368,18 +3368,76 @@ static const BYTE hash[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf };
static const BYTE signedBigCert[] = { - 0x30, 0x81, 0x93, 0x30, 0x7a, 0x02, 0x01, 0x01, 0x30, 0x02, 0x06, 0x00, 0x30, - 0x15, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x0a, 0x4a, - 0x75, 0x61, 0x6e, 0x20, 0x4c, 0x61, 0x6e, 0x67, 0x00, 0x30, 0x22, 0x18, 0x0f, - 0x31, 0x36, 0x30, 0x31, 0x30, 0x31, 0x30, 0x31, 0x30, 0x30, 0x30, 0x30, 0x30, - 0x30, 0x5a, 0x18, 0x0f, 0x31, 0x36, 0x30, 0x31, 0x30, 0x31, 0x30, 0x31, 0x30, - 0x30, 0x30, 0x30, 0x30, 0x30, 0x5a, 0x30, 0x15, 0x31, 0x13, 0x30, 0x11, 0x06, - 0x03, 0x55, 0x04, 0x03, 0x13, 0x0a, 0x4a, 0x75, 0x61, 0x6e, 0x20, 0x4c, 0x61, - 0x6e, 0x67, 0x00, 0x30, 0x07, 0x30, 0x02, 0x06, 0x00, 0x03, 0x01, 0x00, 0xa3, - 0x16, 0x30, 0x14, 0x30, 0x12, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, - 0x04, 0x08, 0x30, 0x06, 0x01, 0x01, 0xff, 0x02, 0x01, 0x01, 0x30, 0x02, 0x06, - 0x00, 0x03, 0x11, 0x00, 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x07, - 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00 }; + ASN_SEQUENCE,0x81,147, + ASN_SEQUENCE,122, + ASN_INTEGER,1, 0x01, + ASN_SEQUENCE,2, + ASN_OBJECTIDENTIFIER,0, + ASN_SEQUENCE,21, + 0x31,19, + ASN_SEQUENCE,17, + ASN_OBJECTIDENTIFIER,3, 0x55,0x04,0x03, + 0x13,10, 0x4a,0x75,0x61,0x6e,0x20,0x4c,0x61,0x6e,0x67,0x00, + ASN_SEQUENCE,34, + 0x18,15, 0x31,0x36,0x30,0x31,0x30,0x31,0x30,0x31,0x30,0x30,0x30,0x30,0x30,0x30,0x5a, + 0x18,15, 0x31,0x36,0x30,0x31,0x30,0x31,0x30,0x31,0x30,0x30,0x30,0x30,0x30,0x30,0x5a, + ASN_SEQUENCE,21, + 0x31,19, + ASN_SEQUENCE,17, + ASN_OBJECTIDENTIFIER,3, 0x55,0x04,0x03, + 0x13,10, 0x4a,0x75,0x61,0x6e,0x20,0x4c,0x61,0x6e,0x67,0x00, + ASN_SEQUENCE,7, + ASN_SEQUENCE,2, + ASN_OBJECTIDENTIFIER,0, + ASN_BITS,1, 0x00, + 0xa3,22, + ASN_SEQUENCE,20, + ASN_SEQUENCE,18, + ASN_OBJECTIDENTIFIER,3, 0x55,0x1d,0x13, + 0x01,1, 0xff, + ASN_OCTETSTRING,8, 0x30,0x06,0x01,0x01,0xff,0x02,0x01,0x01, + ASN_SEQUENCE,2, + ASN_OBJECTIDENTIFIER,0, + ASN_BITS,17, 0x00,0x0f,0x0e,0x0d,0x0c,0x0b,0x0a,0x09,0x08, + 0x07,0x06,0x05,0x04,0x03,0x02,0x01,0x00 +}; + +static const BYTE signedBigCertWithIndefiniteSeq[] = { + ASN_SEQUENCE,0x81,151, + ASN_SEQUENCE,126, + ASN_INTEGER,1, 0x01, + ASN_SEQUENCE,2, + ASN_OBJECTIDENTIFIER,0, + ASN_SEQUENCE,21, + 0x31,19, + ASN_SEQUENCE,17, + ASN_OBJECTIDENTIFIER,3, 0x55,0x04,0x03, + 0x13,10, 0x4a,0x75,0x61,0x6e,0x20,0x4c,0x61,0x6e,0x67,0x00, + ASN_SEQUENCE,0x80, + 0x18,15, 0x31,0x36,0x30,0x31,0x30,0x31,0x30,0x31,0x30,0x30,0x30,0x30,0x30,0x30,0x5a, + 0x18,15, 0x31,0x36,0x30,0x31,0x30,0x31,0x30,0x31,0x30,0x30,0x30,0x30,0x30,0x30,0x5a, + 0,0, + ASN_SEQUENCE,21, + 0x31,19, + ASN_SEQUENCE,17, + ASN_OBJECTIDENTIFIER,3, 0x55,0x04,0x03, + 0x13,10, 0x4a,0x75,0x61,0x6e,0x20,0x4c,0x61,0x6e,0x67,0x00, + ASN_SEQUENCE,0x80, + ASN_SEQUENCE,2, + ASN_OBJECTIDENTIFIER,0, + ASN_BITS,1, 0x00, + 0,0, + 0xa3,22, + ASN_SEQUENCE,20, + ASN_SEQUENCE,18, + ASN_OBJECTIDENTIFIER,3, 0x55,0x1d,0x13, + 0x01,1, 0xff, + ASN_OCTETSTRING,8, 0x30,0x06,0x01,0x01,0xff,0x02,0x01,0x01, + ASN_SEQUENCE,2, + ASN_OBJECTIDENTIFIER,0, + ASN_BITS,17, 0x00,0x0f,0x0e,0x0d,0x0c,0x0b,0x0a,0x09,0x08, + 0x07,0x06,0x05,0x04,0x03,0x02,0x01,0x00 +};
static void test_encodeCert(DWORD dwEncoding) { @@ -3451,6 +3509,29 @@ static void test_decodeCert(DWORD dwEncoding) info->Subject.cbData), "Unexpected subject\n"); LocalFree(buf); } + ret = pCryptDecodeObjectEx(dwEncoding, X509_CERT_TO_BE_SIGNED, signedBigCertWithIndefiniteSeq, + sizeof(signedBigCertWithIndefiniteSeq), CRYPT_DECODE_ALLOC_FLAG, NULL, &buf, &size); + ok(ret, "CryptDecodeObjectEx failed: %08x\n", GetLastError()); + if (ret) + { + CERT_INFO *info = (CERT_INFO *)buf; + + ok(size >= sizeof(CERT_INFO), "Wrong size %d\n", size); + ok(info->SerialNumber.cbData == 1, + "Expected serial number size 1, got %d\n", info->SerialNumber.cbData); + ok(*info->SerialNumber.pbData == *serialNum, + "Expected serial number %d, got %d\n", *serialNum, + *info->SerialNumber.pbData); + ok(info->Issuer.cbData == sizeof(encodedCommonName), + "Wrong size %d\n", info->Issuer.cbData); + ok(!memcmp(info->Issuer.pbData, encodedCommonName, info->Issuer.cbData), + "Unexpected issuer\n"); + ok(info->Subject.cbData == sizeof(encodedCommonName), + "Wrong size %d\n", info->Subject.cbData); + ok(!memcmp(info->Subject.pbData, encodedCommonName, + info->Subject.cbData), "Unexpected subject\n"); + LocalFree(buf); + } }
static const BYTE emptyDistPoint[] = { 0x30, 0x02, 0x30, 0x00 };
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Alexandre Julliard