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179 Commits

Author SHA1 Message Date
John Reiser bfd2153f2b Delete trailing space characters 
https://github.com/upx/upx/pull/589
	modified:   pefile.cpp
 2022-07-26 20:09:16 -07:00
S01den 077793fa5e Update pefile.cpp 
I found a bug by participating to the Binary Golf Grand Prix 3 (https://tmpout.sh/bggp/3/) : upx text.exe segfaults when NumberOfSections in the IMAGE_FILE_HEADER is NULL, so 
if (memcmp(isection[0].name,"UPX",3) == 0) triggers a NULL pointer dereference causing a crash.
To fix it, just have to check if isection is NULL (which means NumberOfSections = 0) or not.
 2022-07-27 01:54:01 +02:00
John Reiser a646231630 aligned_sotls, per Laszlo 
https://github.com/upx/upx/issues/556
	modified:   pefile.cpp
 2022-02-07 08:39:13 -08:00
John Reiser 1050de5171 Native alignment for the "load config" table 
https://github.com/upx/upx/issues/556
	modified:   pefile.cpp
 2022-01-15 06:45:47 -08:00
Kornel Pal 620955a724 PE: Fix has_oxrelocs (TLS always has oxrelocs) 2021-12-31 20:45:28 +01:00
John Reiser 2e64a277f8 Fix headway during optimizeReloc() 
Later: "Assertion `(soxrelocs == 0) == !has_oxrelocs' failed."
https://github.com/upx/upx/issues/552
	modified:   packer.cpp
	modified:   packer.h
	modified:   pefile.cpp
 2021-12-31 10:27:58 -08:00
John Reiser ea567a8b14 Check when optimizeRelocs() 
https://github.com/upx/upx/issues/513
	modified:   packer.h
	modified:   packer.cpp
	modified:   pefile.cpp
	modified:   p_wcle.cpp
	modified:   p_tmt.cpp
 2021-12-29 16:57:52 -08:00
Kornel Pal 990d0ec543 PE: Remove duplicate oxrelocs write 2021-12-22 05:07:54 +01:00
Kornel Pal 937bfa4e49 PE: Add support for EFI images 2021-12-22 03:05:24 +01:00
Kornel Pal 1d9c211eed PE: Make imports in decompressor stub optional 2021-12-22 03:00:17 +01:00
Kornel Pal 76ddf6b8da PE: Add position independent decompressor stub for i386 2021-12-22 02:58:09 +01:00
Kornel Pal 7f1f29b0d8 PE: Remove empty non-compressed section 2021-12-22 02:57:10 +01:00
Kornel Pal 222471744f PE: Remove file alignment restriction 2021-12-22 02:56:09 +01:00
Kornel Pal cc100be26e PE: Fix stripped relocation handling 2021-12-22 02:55:33 +01:00
Kornel Pal bfd1f1fbfa PE: Fix relocation parsing and validation 2021-12-16 06:56:01 +01:00
bitraid 6da79783ea PE: Handle empty imports 2021-05-15 21:41:31 +03:00
John Reiser 02bd9cc403 IMAGE_SUBSYSTEM_EFI_APPLICATION 
Beginning of support for compressing EFI files; lacks run-time decompressor.
https://github.com/upx/upx/issues/518
	modified:   p_armpe.cpp
	modified:   p_w32pe.cpp
	modified:   p_w64pep.cpp
	modified:   pefile.cpp
	modified:   pefile.h
 2021-09-06 08:38:51 -07:00
bitraid d55746f62d PE: disable CFG and compress with --force 2021-05-01 18:05:27 +03:00
bitraid 144010295e Improve --strip-relocs 
- Remove .reloc section
- Enable for 64-bit images
- Abort if explicitly set on unsupported image
- Use with --force to remove ASLR / apply when imagebase < default
 2021-04-25 20:15:07 +03:00
Markus F.X.J. Oberhumer f6ff5a2805 Cleanups: start working on -Wsuggest-override, add some "final". NFCI. 2021-03-28 21:19:29 +02:00
bitraid 1518e5bc98 PE: fix SizeOfHeaders value of Optional Header field 2021-03-25 21:41:49 +02:00
John Reiser ba5c77c9e5 Reject if MZ and PE headers overlap 
Overlap ('leanify', etc.) causes headaches.
https://github.com/upx/upx/issues/231
	modified:   p_w32pe.cpp
	modified:   p_w64pep.cpp
	modified:   pefile.cpp
 2021-03-14 15:20:15 -07:00
Markus F.X.J. Oberhumer d86d5314ba Modernize libc usage: more cleanups. 2021-01-05 22:03:29 +01:00
Markus F.X.J. Oberhumer 700c8730cf Modernize libc usage: stop using off_t, use modern printf. 
C++ 14 is here, and old versions of MSVC and MSVCRT have
haunted us long enough.
 2021-01-05 18:52:05 +01:00
Markus F.X.J. Oberhumer 9131d5216f Welcome 2021. 2021-01-01 20:39:22 +01:00
Markus F.X.J. Oberhumer f7e2266c3f Start using some C++ 14 features. 2020-12-08 05:40:17 +01:00
John Reiser bb1df15958 Use 'mb_' prefix on instances of MemBuffer 
modified:   pefile.cpp
	modified:   pefile.h
 2020-12-05 13:53:14 -08:00
Liam Murphy 249431f45f tweak formatting to reduce diff 2020-11-26 03:00:21 +00:00
Liam Murphy cbe129795e migrate to MemBuffer class from New() to remove leak 2020-11-26 00:14:00 +00:00
John Reiser 2a135e245b Prefer MemBuffer instead of New()+delete 
https://github.com/upx/upx/issues/428
	modified:   pefile.cpp
	modified:   pefile.h
 2020-12-05 13:44:19 -08:00
Markus F.X.J. Oberhumer f218812858 Fix spelling of some constants. 2020-12-03 01:46:30 +01:00
Markus F.X.J. Oberhumer 8a7b980fc0 Avoid a MSVC warning. 2020-12-03 01:44:09 +01:00
John Reiser 10df93536e Yet another attempt to suppress MSVC C4245 
https://github.com/upx/upx/issues/435
	modified:   pefile.cpp
 2020-11-29 00:01:22 -08:00
John Reiser 6cad27896f Another attempt to suppress MSVC C4245 
https://github.com/upx/upx/issues/435
	modified:   pefile.cpp
 2020-11-28 23:53:49 -08:00
John Reiser 052392d97b Attempt workaround for MSVC C4245 signed/unsigned mismatch in template 'argument' 
https://github.com/upx/upx/issues/435
	modified:   pefile.cpp
 2020-11-28 20:23:01 -08:00
Matthijs Lavrijsen 4f3054f07d PE: only add a TLS relocation if tls_handler_offset_reloc != 0 2020-09-08 11:44:56 +02:00
bitraid 0d7bd52e21 Only pack w/ -f PE files that force integrity check 2020-10-31 19:53:33 +02:00
John Reiser 7c105d7af5 omemmove exactly as much 
Fix 14992260c60b8d6677a677a9cdfae98b11353df7; revealed by testsuite
	modified:   pefile.cpp
 2020-11-05 15:05:52 -08:00
John Reiser 143049922b Beware overlap when rebuildImports 
Based on a hint from a little bird.
	modified:   pefile.cpp
 2020-09-20 14:10:24 -07:00
Mattiwatti 89d0fda9fa Make PE load config directory address dword aligned 2020-01-21 16:03:40 +01:00
bitraid 6a85bab5da Don't pack Cotrol Flow Guard PE files 2020-07-28 17:36:13 +03:00
bitraid 17bd0b3248 Don't use --strip-reloc with -d 
Always restore the relocation section of Portable Executables on
unpacking, if it exists in the compressed image.
 2020-04-13 21:38:22 +03:00
bitraid 1ce6f0e6f4 Fix unpacking of ASLR enabled PE files 2020-04-12 03:19:57 +03:00
Markus F.X.J. Oberhumer d1174385ef Welcome 2020. 2020-01-08 04:13:28 +01:00
Markus F.X.J. Oberhumer c2aa5c35f7 Silence a gcc-4.6 compiler warning. 2019-02-25 13:41:54 +01:00
Markus F.X.J. Oberhumer 3667fa4e44 Welcome 2019. 2019-02-15 11:04:09 +01:00
John Reiser 70ed2d0d03 Allow Load Configuration directory > 256, with info(). 
https://github.com/upx/upx/issues/245
	modified:   pefile.cpp
 2019-01-26 07:51:16 -08:00
John Reiser b711d2f750 TLS callbacks: one entry only 
https://github.com/upx/upx/issues/186  [partial, incomplete]
(Laszlo hints there is more, but meanwhile this does fix some.)
	modified:   pefile.cpp
 2018-04-06 13:44:24 -07:00
Mattiwatti 2c2e108301 PE: fix comparison against a constant value 
... due to size always being assigned to right before this comparison,
and instead check against the RVA and size of the export directory
from the header. (note: this is still stricter than the Windows loader
which ignores all of these except the directory RVA, but if the name RVA
is invalid the PE was probably tampered with).
Change 'offset' to 'RVA' in exception message; this field is always an RVA

  Author:    Mattiwatti <mattiwatti@gmail.com>
	modified:   pefile.cpp
 2018-04-02 09:07:29 -07:00
John Reiser 563165e6ae Defensive patches from hints by Sean Williams <rootkit@google.com> 
modified:   pefile.cpp
 2018-03-29 16:55:21 -07:00