Fixes#8441: Modify the password callback handling to reserve one byte in the buffer for a null terminator, ensuring compatibility with legacy behavior that puts a terminating null byte at the end.
Additionally, validate the length returned by the callback to ensure it does not exceed the given buffer size. If the returned length is too large, the process now stops gracefully with an appropriate error, enhancing robustness by preventing crashes from out-of-bounds access.
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25330)
This is an alternative to #20893
Additionally this fixes also a possible issue in UI_UTIL_read_pw:
When UI_new returns NULL, the result code would still be zero
as if UI_UTIL_read_pw succeeded, but the password buffer is left
uninitialized, with subsequent possible stack corruption or worse.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20957)
UI_method_set_ex_data returns 0 and 1 instead of negative numbers.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18397)
The OPENSSL_memdup() is not always success, as the potential failure of
the allocation.
Then the '*pptr'could be NULL pointer but the ui_dup_method_data() will
still return 1.
In CRYPTO_dup_ex_data(), the 'storage[i]->dup_func' will not fail and
'ptr' will be used in CRYPTO_set_ex_data().
Also, if '*pptr' is NULL, I think it should also return 0 to tell the
caller that the duplication fails in order to prevernt using the NULL
pointer.
Therefore, it should be better to add the check and return 1 only if the
duplication succeed.
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17582)
When `PEM_write_bio_PKCS8PrivateKey()` was passed an empty passphrase
string, `OPENSSL_memdup()` was incorrectly getting used for 0 bytes size
allocation, which resulted in malloc failures.
Fixes: https://github.com/openssl/openssl/issues/17506
Signed-off-by: Darshan Sen <raisinten@gmail.com>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17507)
This fixes a strict aliasing issue in ui_dup_method_data.
The parameter type of CRYPTO_EX_dup's from_d parameter
is in fact void **, since it points to a pointer.
This function is rarely used, therefore fix the param type
although that may be considered an API breaking change.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2986)
Apart from public and internal header files, there is a third type called
local header files, which are located next to source files in the source
directory. Currently, they have different suffixes like
'*_lcl.h', '*_local.h', or '*_int.h'
This commit changes the different suffixes to '*_local.h' uniformly.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9333)
Since return is inconsistent, I removed unnecessary parentheses and
unified them.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4541)
This allows completely arbitrary passphrases to be entered, including
NUL bytes.
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3821)
The callback we're wrapping around may or may not return a
NUL-terminated string. Let's ensure it is.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3791)
This was done by the following
find . -name '*.[ch]' | /tmp/pl
where /tmp/pl is the following three-line script:
print unless $. == 1 && m@/\* .*\.[ch] \*/@;
close ARGV if eof; # Close file to reset $.
And then some hand-editing of other files.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Much related/similar work also done by
Ivan Nestlerode <ivan.nestlerode@sonos.com>
+Replace FILE BIO's with dummy ops that fail.
+Include <stdio.h> for sscanf() even with no-stdio (since the declaration
is there). We rely on sscanf() to parse the OPENSSL_ia32cap environment
variable, since it can be larger than a 'long'. And we don't rely on the
availability of strtoull().
+Remove OPENSSL_stderr(); not used.
+Make OPENSSL_showfatal() do nothing (currently without stdio there's
nothing we can do).
+Remove file-based functionality from ssl/. The function
prototypes were already gone, but not the functions themselves.
+Remove unviable conf functionality via SYS_UEFI
+Add fallback definition of BUFSIZ.
+Remove functions taking FILE * from header files.
+Add missing DECLARE_PEM_write_fp_const
+Disable X509_LOOKUP_hash_dir(). X509_LOOKUP_file() was already compiled out,
so remove its prototype.
+Use OPENSSL_showfatal() in CRYPTO_destroy_dynlockid().
+Eliminate SRP_VBASE_init() and supporting functions. Users will need to
build the verifier manually instead.
+Eliminate compiler warning for unused do_pk8pkey_fp().
+Disable TEST_ENG_OPENSSL_PKEY.
+Disable GOST engine as is uses [f]printf all over the place.
+Eliminate compiler warning for unused send_fp_chars().
Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
functions in ui_compat. This gave reason to rework that part more
thoroughly, so here are the changes made:
1. Add DES_read_password() and DES_read_2passwords() with the same
functionality as the corresponding old des_ functions, as a
convenience to the users.
2. Add UI_UTIL_read_pw_string() and UI_UTIL_read_pw() with the
functionality from des_read_pw_string() and des_read_pw(), again as
a concenience to the users.
3. Rename des_read_password(), des_read_2passwords(),
des_read_pw_string() and des_read_pw() by changing des_ to
_ossl_old_des_, and add the usual mapping macros.
4. Move the implementation of des_read_password() and
des_read_2passwords() to the des directory, since they are tightly
tied to DES anyway.
This change was inspired by a patch from Assar Westerlund <assar@sics.se>:
There are some functions that didn't get the kick-away-old-des-and-
replace-des-with-DES action. Here's a patch that adds DES_ and des_
(in des_old.h) versions of des_read_pw_string et al. This patch
includes some of the first des_old.h semi-colon macro fixes that I've
already sent.
