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Alessandro Ghedini 6905187488 Make BUF_strndup() read-safe on arbitrary inputs 
BUF_strndup was calling strlen through BUF_strlcpy, and ended up reading
past the input if the input was not a C string.

Make it explicitly part of BUF_strndup's contract to never read more
than |siz| input bytes. This augments the standard strndup contract to
be safer.

The commit also adds a check for siz overflow and some brief documentation
for BUF_strndup().

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 110f7b37de)
(cherry picked from commit f61216ba9d)
2015-09-22 20:09:38 +02:00
..
aes RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
asn1 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
bf RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
bio RT3479: Add UTF8 support to BIO_read_filename() 2015-09-21 17:33:06 -04:00
bn RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
buffer Make BUF_strndup() read-safe on arbitrary inputs 2015-09-22 20:09:38 +02:00
camellia RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
cast RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
cmac RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
cms RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
comp RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
conf RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
des RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
dh RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
dsa This undoes GH367 for non-master 2015-09-18 15:56:45 -04:00
dso RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
ec RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
ecdh RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
ecdsa RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
engine RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
err RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
evp Fix indentation 2015-09-19 09:10:38 -04:00
hmac RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
idea RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
jpake RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
krb5 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
lhash RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
md2 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
md4 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
md5 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
mdc2 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
modes RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
objects RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
ocsp RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
pem RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
perlasm Reduce version skew. 2012-06-08 09:18:47 +00:00
pkcs7 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
pkcs12 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
pqueue RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
rand RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
rc2 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
rc4 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
rc5 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
ripemd RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
rsa RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
seed RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
sha RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
srp Fix SRP memory leaks 2015-09-21 10:26:32 +01:00
stack RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
store RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
threads Cleanup mttest.c : because we no longer use stdio here, don't include it 2015-06-21 22:13:28 +02:00
ts RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
txt_db RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
ui RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
whrlpool RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
x509 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
x509v3 RT4044: Remove .cvsignore files. 2015-09-15 12:00:18 -04:00
alphacpuid.pl Alpha assembler fixed from HEAD. 2011-08-12 12:31:08 +00:00
arm_arch.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
armcap.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
armv4cpuid.S ARM assembler pack update from HEAD. 2011-11-14 20:58:01 +00:00
constant_time_locl.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
constant_time_test.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
cpt_err.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
cryptlib.c RT3823: Improve the robustness of event logging 2015-09-21 14:36:39 -04:00
cryptlib.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
crypto-lib.com Spaces were added in some strings for better readability. However, those spaces do not belong in file names, so when picking out the individual parts, remove the spaces 2014-10-15 10:49:24 +02:00
crypto.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
cversion.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
ebcdic.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
ebcdic.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
ex_data.c Fix memory leak reporting. 2015-02-09 13:01:28 +00:00
fips_err.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
fips_ers.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
ia64cpuid.S IA64 assembler pack update from HEAD. 2011-11-14 20:45:57 +00:00
install-crypto.com Adjust VMS build to Unix build. Most of all, make it so the disabled 2014-10-15 10:49:08 +02:00
LPdir_nyi.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
LPdir_unix.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
LPdir_vms.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
LPdir_win.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
LPdir_win32.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
LPdir_wince.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
Makefile Fix the update target and remove duplicate file updates 2015-05-23 11:22:10 +02:00
md32_common.h md32_common.h: backport ICC fix. 2015-05-26 09:58:12 +02:00
mem.c Fix CRYPTO_strdup 2015-04-22 17:24:47 +01:00
mem_clr.c Make sure OPENSSL_cleanse checks for NULL 2015-09-17 22:33:31 +01:00
mem_dbg.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
o_dir.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
o_dir.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
o_dir_test.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
o_fips.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
o_init.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
o_str.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
o_str.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
o_time.c Re-align some comments after running the reformat script. 2015-01-22 09:39:01 +00:00
o_time.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
opensslconf.h.in Make preprocessor error into real preprocessor error 2015-06-16 13:14:09 +02:00
opensslv.h Prepare for 1.0.1q-dev 2015-07-09 13:29:59 +01:00
ossl_typ.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
pariscid.pl PA-RISC assembler pack: switch to bve in 64-bit builds. 2013-06-30 23:15:53 +02:00
ppccap.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
ppccpuid.pl ppccpuid.pl: branch hints in OPENSSL_cleanse impact small block performance 2012-04-27 20:20:15 +00:00
s390xcap.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
s390xcpuid.S s390x assembler pack update from HEAD. 2011-11-14 20:47:22 +00:00
sparccpuid.S Conversion to UTF-8 where needed 2015-07-14 01:18:57 +02:00
sparcv9cap.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
symhacks.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
uid.c Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
vms_rms.h Run util/openssl-format-source -v -c . 2015-01-22 09:38:39 +00:00
x86_64cpuid.pl x86_64 assembly pack: make Windows build more robust [from master]. 2013-01-22 22:54:04 +01:00
x86cpuid.pl x86cpuid.pl: make it work with older CPUs. 2013-03-18 19:50:23 +01:00