Hi,
I'm wondering if the following but has been found and fixed. If so,
I'd really like to know about it.
backtrace:
- stunnel dies on a SIGSEGV
- in crypto/rsa/rsa_lib.c, line 183 (RSA_new_method):
179 ret->_method_mod_p=NULL;
180 ret->_method_mod_q=NULL;
181 ret->blinding=NULL;
182 ret->bignum_data=NULL;
->183 ret->flags=ret->meth->flags;
184 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
185 if ((ret->meth->init != NULL) && !ret->meth->init(ret))
186 {
ret->meth has been mulched.
- in crypto/engine/eng_table.c
engine_table_select() seems to walk through rsa_table, looking for
a valid engine. It goes through:
CryptoSwift hardware engine support
nCipher hardware engine support
Atalla hardware engine support
Nuron hardware engine support
UBSEC hardware engine support
Aep hardware engine support
SureWare hardware engine support
IBM 4758 CCA hardware engine support
up to this point, the struct returned by sk_ENGINE_value() looks ok.
For example, for the last one:
struct {
id = 0x3ffbfef2f90 = "4758cca"
name = 0x3ffbfef3188 = "IBM 4758 CCA hardware engine support"
rsa_meth = 0x3fffffd3140
dsa_meth = (nil)
dh_meth = (nil)
rand_meth = 0x3fffffd2fe0
ciphers = (nil)
digests = (nil)
destroy = 0x3ffbff7a54c
init = 0x3ffbff7a578
finish = 0x3ffbff7a838
ctrl = 0x3ffbff7a908
load_privkey = 0x3ffbff7a9dc
load_pubkey = 0x3ffbff7ad34
cmd_defns = 0x3fffffe4e80
flags = 0
struct_ref = 1
funct_ref = 0
ex_data = struct {
sk = (nil)
dummy = 0
}
prev = 0x1400131c0
next = (nil)
}
however, the next one is garbage:
struct {
id = 0x3fffffd3c20 = ""
name = 0x140047560 = "`^9\375\377\377^C"
rsa_meth = 0x20000d2
dsa_meth = 0x2
dh_meth = 0x3fffffd3c30
rand_meth = 0x1400478c0
ciphers = 0x3000042
digests = 0x2
destroy = 0x3fffffd3c40
init = 0x1400476a0
finish = 0x40000ad
ctrl = 0x2
load_privkey = 0x3fffffd3c50
load_pubkey = 0x140046120
cmd_defns = 0x500001f
flags = 2
struct_ref = 0
funct_ref = -181152
ex_data = struct {
sk = 0x140044fc0
dummy = 100663428
}
prev = 0x2
next = 0x3fffffd3c70
}
Help?
Robert Urban
Munich, Germany
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