Commit Graph

7 Commits

Author SHA1 Message Date
Darren Kenny
ae0f3fabeb libgcrypt/mpi: Fix possible NULL dereference
The code in gcry_mpi_scan() assumes that buffer is not NULL, but there
is no explicit check for that, so we add one.

Fixes: CID 73757

Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2021-03-02 15:54:16 +01:00
Darren Kenny
e8814c8111 libgcrypt/mpi: Fix possible unintended sign extension
The array of unsigned char gets promoted to a signed 32-bit int before
it is finally promoted to a size_t. There is the possibility that this
may result in the signed-bit being set for the intermediate signed
32-bit int. We should ensure that the promotion is to the correct type
before we bitwise-OR the values.

Fixes: CID 96697

Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2021-03-02 15:54:16 +01:00
Vladimir Serbinenko
35de6d4bac * grub-core/lib/libgcrypt/mpi/longlong.h: Fix compilation error with
-march=armv3.
2013-11-30 11:19:06 +01:00
Vladimir Serbinenko
a92b5cb8d8 * grub-core/lib/libgcrypt/mpi/longlong.h: Use C version with mips
clang.
2013-11-23 00:36:13 +01:00
Vladimir Serbinenko
b9563c9451 * grub-core/lib/libgcrypt/mpi/mpih-div.c (_gcry_mpih_divrem):
Use grub_fatal rather than divide by zero.
	* grub-core/lib/libgcrypt/mpi/mpi-pow.c (gcry_mpi_powm): Likewise.
2013-11-08 16:33:48 +01:00
Vladimir Serbinenko
d1307d873a Import libgcrypt 1.5.3. 2013-11-07 06:35:50 +01:00
Vladimir 'phcoder' Serbinenko
5e3b8dcbb5 Import gcrypt public-key cryptography and implement signature checking. 2013-01-11 21:32:42 +01:00