CVE-2018-20651

A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a crafted ET_DYN with no program headers. A specially crafted ELF file allows remote attackers to cause a denial of service, as demonstrated by ld.

A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a crafted ET_DYN with no program headers. A specially crafted ELF file allows remote attackers to cause a denial of service, as demonstrated by ld.

This update for binutils fixes the following issues:

binutils was updated to current 2.32 branch [jsc#ECO-368].

Includes following security fixes:

• CVE-2018-17358: Fixed invalid memory access in _bfd_stab_section_find_nearest_line in syms.c (bsc#1109412)

• CVE-2018-17359: Fixed invalid memory access exists in bfd_zalloc in opncls.c (bsc#1109413)

• CVE-2018-17360: Fixed heap-based buffer over-read in bfd_getl32 in libbfd.c (bsc#1109414)

• CVE-2018-17985: Fixed a stack consumption problem caused by the cplus_demangle_type (bsc#1116827)

• CVE-2018-18309: Fixed an invalid memory address dereference was discovered in read_reloc in reloc.c (bsc#1111996)

• CVE-2018-18483: Fixed get_count function provided by libiberty that allowed attackers to cause a denial of service or other unspecified impact (bsc#1112535)

• CVE-2018-18484: Fixed stack exhaustion in the C++ demangling functions provided by libiberty, caused by recursive stack frames (bsc#1112534)

• CVE-2018-18605: Fixed a heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup causing a denial of service (bsc#1113255)

• CVE-2018-18606: Fixed a NULL pointer dereference in _bfd_add_merge_section when attempting to merge sections with large alignments, causing denial of service (bsc#1113252)

• CVE-2018-18607: Fixed a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section, causing denial of service (bsc#1113247)

• CVE-2018-19931: Fixed a heap-based buffer overflow in bfd_elf32_swap_phdr_in in elfcode.h (bsc#1118831)

• CVE-2018-19932: Fixed an integer overflow and infinite loop caused by the IS_CONTAINED_BY_LMA (bsc#1118830)

• CVE-2018-20623: Fixed a use-after-free in the error function in elfcomm.c (bsc#1121035)

• CVE-2018-20651: Fixed a denial of service via a NULL pointer dereference in elf_link_add_object_symbols in elflink.c (bsc#1121034)

• CVE-2018-20671: Fixed an integer overflow that can trigger a heap-based buffer overflow in load_specific_debug_section in objdump.c (bsc#1121056)

• CVE-2018-1000876: Fixed integer overflow in bfd_get_dynamic_reloc_upper_bound,bfd_canonicalize_dynamic_reloc in objdump (bsc#1120640)

• CVE-2019-1010180: Fixed an out of bound memory access that could lead to crashes (bsc#1142772)

• enable xtensa architecture (Tensilica lc6 and related)

• Use -ffat-lto-objects in order to provide assembly for static libs (bsc#1141913).

• Fixed some LTO build issues (bsc#1133131 bsc#1133232).

• riscv: Don't check ABI flags if no code section

• Fixed a segfault in ld when building some versions of pacemaker (bsc#1154025, bsc#1154016).

• Add avr, epiphany and rx to target_list so that the common binutils can handle all objects we can create with crosses (bsc#1152590).

Update to binutils 2.32:

• The binutils now support for the C-SKY processor series.
• The x86 assembler now supports a -mvexwig=[0|1] option to control encoding of VEX.W-ignored (WIG) VEX instructions. It also has a new -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property notes.
• The MIPS assembler now supports the Loongson EXTensions R2 (EXT2), the Loongson EXTensions (EXT) instructions, the Loongson Content Address Memory (CAM) ASE and the Loongson MultiMedia extensions Instructions (MMI) ASE.
• The addr2line, c++filt, nm and objdump tools now have a default limit on the maximum amount of recursion that is allowed whilst demangling strings. This limit can be disabled if necessary.
• Objdump's --disassemble option can now take a parameter, specifying the starting symbol for disassembly. Disassembly will continue from this symbol up to the next symbol or the end of the function.
• The BFD linker will now report property change in linker map file when merging GNU properties.
• The BFD linker's -t option now doesn't report members within archives, unless -t is given twice. This makes it more useful when generating a list of files that should be packaged for a …

This update for binutils fixes the following issues:

binutils was updated to current 2.32 branch [jsc#ECO-368].

Includes following security fixes:

• CVE-2018-17358: Fixed invalid memory access in _bfd_stab_section_find_nearest_line in syms.c (bsc#1109412)

• CVE-2018-17359: Fixed invalid memory access exists in bfd_zalloc in opncls.c (bsc#1109413)

• CVE-2018-17360: Fixed heap-based buffer over-read in bfd_getl32 in libbfd.c (bsc#1109414)

• CVE-2018-17985: Fixed a stack consumption problem caused by the cplus_demangle_type (bsc#1116827)

• CVE-2018-18309: Fixed an invalid memory address dereference was discovered in read_reloc in reloc.c (bsc#1111996)

• CVE-2018-18483: Fixed get_count function provided by libiberty that allowed attackers to cause a denial of service or other unspecified impact (bsc#1112535)

• CVE-2018-18484: Fixed stack exhaustion in the C++ demangling functions provided by libiberty, caused by recursive stack frames (bsc#1112534)

• CVE-2018-18605: Fixed a heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup causing a denial of service (bsc#1113255)

• CVE-2018-18606: Fixed a NULL pointer dereference in _bfd_add_merge_section when attempting to merge sections with large alignments, causing denial of service (bsc#1113252)

• CVE-2018-18607: Fixed a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section, causing denial of service (bsc#1113247)

• CVE-2018-19931: Fixed a heap-based buffer overflow in bfd_elf32_swap_phdr_in in elfcode.h (bsc#1118831)

• CVE-2018-19932: Fixed an integer overflow and infinite loop caused by the IS_CONTAINED_BY_LMA (bsc#1118830)

• CVE-2018-20623: Fixed a use-after-free in the error function in elfcomm.c (bsc#1121035)

• CVE-2018-20651: Fixed a denial of service via a NULL pointer dereference in elf_link_add_object_symbols in elflink.c (bsc#1121034)

• CVE-2018-20671: Fixed an integer overflow that can trigger a heap-based buffer overflow in load_specific_debug_section in objdump.c (bsc#1121056)

• CVE-2018-1000876: Fixed integer overflow in bfd_get_dynamic_reloc_upper_bound,bfd_canonicalize_dynamic_reloc in objdump (bsc#1120640)

• CVE-2019-1010180: Fixed an out of bound memory access that could lead to crashes (bsc#1142772)

• enable xtensa architecture (Tensilica lc6 and related)

• Use -ffat-lto-objects in order to provide assembly for static libs (bsc#1141913).

• Fixed some LTO build issues (bsc#1133131 bsc#1133232).

• riscv: Don't check ABI flags if no code section

• Fixed a segfault in ld when building some versions of pacemaker (bsc#1154025, bsc#1154016).

• Add avr, epiphany and rx to target_list so that the common binutils can handle all objects we can create with crosses (bsc#1152590).

Update to binutils 2.32:

• The binutils now support for the C-SKY processor series.
• The x86 assembler now supports a -mvexwig=[0|1] option to control encoding of VEX.W-ignored (WIG) VEX instructions. It also has a new -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property notes.
• The MIPS assembler now supports the Loongson EXTensions R2 (EXT2), the Loongson EXTensions (EXT) instructions, the Loongson Content Address Memory (CAM) ASE and the Loongson MultiMedia extensions Instructions (MMI) ASE.
• The addr2line, c++filt, nm and objdump tools now have a default limit on the maximum amount of recursion that is allowed whilst demangling strings. This limit can be disabled if necessary.
• Objdump's --disassemble option can now take a parameter, specifying the starting symbol for disassembly. Disassembly will continue from this symbol up to the next symbol or the end of the function.
• The BFD linker will now report property change in linker map file when merging GNU properties.
• The BFD linker's -t option now doesn't report members within archives, unless -t is given twice. This makes it more useful when generating a list of files that should be packaged for a …

These are all security issues fixed in the binutils-2.37-1.3 package on the GA media of openSUSE Tumbleweed.

This update for binutils fixes the following issues:

binutils was updated to current 2.32 branch @7b468db3 [jsc#ECO-368]:

Includes the following security fixes:

• CVE-2018-17358: Fixed invalid memory access in _bfd_stab_section_find_nearest_line in syms.c (bsc#1109412)

• CVE-2018-17359: Fixed invalid memory access exists in bfd_zalloc in opncls.c (bsc#1109413)

• CVE-2018-17360: Fixed heap-based buffer over-read in bfd_getl32 in libbfd.c (bsc#1109414)

• CVE-2018-17985: Fixed a stack consumption problem caused by the cplus_demangle_type (bsc#1116827)

• CVE-2018-18309: Fixed an invalid memory address dereference was discovered in read_reloc in reloc.c (bsc#1111996)

• CVE-2018-18483: Fixed get_count function provided by libiberty that allowed attackers to cause a denial of service or other unspecified impact (bsc#1112535)

• CVE-2018-18484: Fixed stack exhaustion in the C++ demangling functions provided by libiberty, caused by recursive stack frames (bsc#1112534)

• CVE-2018-18605: Fixed a heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup causing a denial of service (bsc#1113255)

• CVE-2018-18606: Fixed a NULL pointer dereference in _bfd_add_merge_section when attempting to merge sections with large alignments, causing denial of service (bsc#1113252)

• CVE-2018-18607: Fixed a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section, causing denial of service (bsc#1113247)

• CVE-2018-19931: Fixed a heap-based buffer overflow in bfd_elf32_swap_phdr_in in elfcode.h (bsc#1118831)

• CVE-2018-19932: Fixed an integer overflow and infinite loop caused by the IS_CONTAINED_BY_LMA (bsc#1118830)

• CVE-2018-20623: Fixed a use-after-free in the error function in elfcomm.c (bsc#1121035)

• CVE-2018-20651: Fixed a denial of service via a NULL pointer dereference in elf_link_add_object_symbols in elflink.c (bsc#1121034)

• CVE-2018-20671: Fixed an integer overflow that can trigger a heap-based buffer overflow in load_specific_debug_section in objdump.c (bsc#1121056)

• CVE-2018-1000876: Fixed integer overflow in bfd_get_dynamic_reloc_upper_bound,bfd_canonicalize_dynamic_reloc in objdump (bsc#1120640)

• CVE-2019-1010180: Fixed an out of bound memory access that could lead to crashes (bsc#1142772)

• Enable xtensa architecture (Tensilica lc6 and related)

• Use -ffat-lto-objects in order to provide assembly for static libs (bsc#1141913).

• Fixed some LTO problems (bsc#1133131 bsc#1133232).

• riscv: Don't check ABI flags if no code section

Update to binutils 2.32:

• The binutils now support for the C-SKY processor series.
• The x86 assembler now supports a -mvexwig=[0|1] option to control encoding of VEX.W-ignored (WIG) VEX instructions. It also has a new -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property notes.
• The MIPS assembler now supports the Loongson EXTensions R2 (EXT2), the Loongson EXTensions (EXT) instructions, the Loongson Content Address Memory (CAM) ASE and the Loongson MultiMedia extensions Instructions (MMI) ASE.
• The addr2line, c++filt, nm and objdump tools now have a default limit on the maximum amount of recursion that is allowed whilst demangling strings. This limit can be disabled if necessary.
• Objdump's --disassemble option can now take a parameter, specifying the starting symbol for disassembly. Disassembly will continue from this symbol up to the next symbol or the end of the function.
• The BFD linker will now report property change in linker map file when merging GNU properties.
• The BFD linker's -t option now doesn't report members within archives, unless -t is given twice. This makes it more useful when generating a list of files that should be packaged for a linker bug report.
• The GOLD linker has improved warning messages for relocations that refer to discarded sections.

• Improve relro support on s390 [fate#326356]
• Handle ELF compressed header alignment correctly.

This update for binutils fixes the following issues:

binutils was updated to current 2.32 branch [jsc#ECO-368].

Includes following security fixes:

• CVE-2018-17358: Fixed invalid memory access in _bfd_stab_section_find_nearest_line in syms.c (bsc#1109412)

• CVE-2018-17359: Fixed invalid memory access exists in bfd_zalloc in opncls.c (bsc#1109413)

• CVE-2018-17360: Fixed heap-based buffer over-read in bfd_getl32 in libbfd.c (bsc#1109414)

• CVE-2018-17985: Fixed a stack consumption problem caused by the cplus_demangle_type (bsc#1116827)

• CVE-2018-18309: Fixed an invalid memory address dereference was discovered in read_reloc in reloc.c (bsc#1111996)

• CVE-2018-18483: Fixed get_count function provided by libiberty that allowed attackers to cause a denial of service or other unspecified impact (bsc#1112535)

• CVE-2018-18484: Fixed stack exhaustion in the C++ demangling functions provided by libiberty, caused by recursive stack frames (bsc#1112534)

• CVE-2018-18605: Fixed a heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup causing a denial of service (bsc#1113255)

• CVE-2018-18606: Fixed a NULL pointer dereference in _bfd_add_merge_section when attempting to merge sections with large alignments, causing denial of service (bsc#1113252)

• CVE-2018-18607: Fixed a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section, causing denial of service (bsc#1113247)

• CVE-2018-19931: Fixed a heap-based buffer overflow in bfd_elf32_swap_phdr_in in elfcode.h (bsc#1118831)

• CVE-2018-19932: Fixed an integer overflow and infinite loop caused by the IS_CONTAINED_BY_LMA (bsc#1118830)

• CVE-2018-20623: Fixed a use-after-free in the error function in elfcomm.c (bsc#1121035)

• CVE-2018-20651: Fixed a denial of service via a NULL pointer dereference in elf_link_add_object_symbols in elflink.c (bsc#1121034)

• CVE-2018-20671: Fixed an integer overflow that can trigger a heap-based buffer overflow in load_specific_debug_section in objdump.c (bsc#1121056)

• CVE-2018-1000876: Fixed integer overflow in bfd_get_dynamic_reloc_upper_bound,bfd_canonicalize_dynamic_reloc in objdump (bsc#1120640)

• CVE-2019-1010180: Fixed an out of bound memory access that could lead to crashes (bsc#1142772)

• enable xtensa architecture (Tensilica lc6 and related)

• Use -ffat-lto-objects in order to provide assembly for static libs (bsc#1141913).

• Fixed some LTO build issues (bsc#1133131 bsc#1133232).

• riscv: Don't check ABI flags if no code section

• Fixed a segfault in ld when building some versions of pacemaker (bsc#1154025, bsc#1154016).

• Add avr, epiphany and rx to target_list so that the common binutils can handle all objects we can create with crosses (bsc#1152590).

Update to binutils 2.32:

• The binutils now support for the C-SKY processor series.
• The x86 assembler now supports a -mvexwig=[0|1] option to control encoding of VEX.W-ignored (WIG) VEX instructions. It also has a new -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property notes.
• The MIPS assembler now supports the Loongson EXTensions R2 (EXT2), the Loongson EXTensions (EXT) instructions, the Loongson Content Address Memory (CAM) ASE and the Loongson MultiMedia extensions Instructions (MMI) ASE.
• The addr2line, c++filt, nm and objdump tools now have a default limit on the maximum amount of recursion that is allowed whilst demangling strings. This limit can be disabled if necessary.
• Objdump's --disassemble option can now take a parameter, specifying the starting symbol for disassembly. Disassembly will continue from this symbol up to the next symbol or the end of the function.
• The BFD linker will now report property change in linker map file when merging GNU properties.
• The BFD linker's -t option now doesn't report members within archives, unless -t is given twice. This makes it more useful when generating a list of files that should be packaged for a …

This update for binutils fixes the following issues:

binutils was updated to current 2.32 branch [jsc#ECO-368].

Includes following security fixes:

• CVE-2018-17358: Fixed invalid memory access in _bfd_stab_section_find_nearest_line in syms.c (bsc#1109412)

• CVE-2018-17359: Fixed invalid memory access exists in bfd_zalloc in opncls.c (bsc#1109413)

• CVE-2018-17360: Fixed heap-based buffer over-read in bfd_getl32 in libbfd.c (bsc#1109414)

• CVE-2018-17985: Fixed a stack consumption problem caused by the cplus_demangle_type (bsc#1116827)

• CVE-2018-18309: Fixed an invalid memory address dereference was discovered in read_reloc in reloc.c (bsc#1111996)

• CVE-2018-18483: Fixed get_count function provided by libiberty that allowed attackers to cause a denial of service or other unspecified impact (bsc#1112535)

• CVE-2018-18484: Fixed stack exhaustion in the C++ demangling functions provided by libiberty, caused by recursive stack frames (bsc#1112534)

• CVE-2018-18605: Fixed a heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup causing a denial of service (bsc#1113255)

• CVE-2018-18606: Fixed a NULL pointer dereference in _bfd_add_merge_section when attempting to merge sections with large alignments, causing denial of service (bsc#1113252)

• CVE-2018-18607: Fixed a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section, causing denial of service (bsc#1113247)

• CVE-2018-19931: Fixed a heap-based buffer overflow in bfd_elf32_swap_phdr_in in elfcode.h (bsc#1118831)

• CVE-2018-19932: Fixed an integer overflow and infinite loop caused by the IS_CONTAINED_BY_LMA (bsc#1118830)

• CVE-2018-20623: Fixed a use-after-free in the error function in elfcomm.c (bsc#1121035)

• CVE-2018-20651: Fixed a denial of service via a NULL pointer dereference in elf_link_add_object_symbols in elflink.c (bsc#1121034)

• CVE-2018-20671: Fixed an integer overflow that can trigger a heap-based buffer overflow in load_specific_debug_section in objdump.c (bsc#1121056)

• CVE-2018-1000876: Fixed integer overflow in bfd_get_dynamic_reloc_upper_bound,bfd_canonicalize_dynamic_reloc in objdump (bsc#1120640)

• CVE-2019-1010180: Fixed an out of bound memory access that could lead to crashes (bsc#1142772)

• enable xtensa architecture (Tensilica lc6 and related)

• Use -ffat-lto-objects in order to provide assembly for static libs (bsc#1141913).

• Fixed some LTO build issues (bsc#1133131 bsc#1133232).

• riscv: Don't check ABI flags if no code section

• Fixed a segfault in ld when building some versions of pacemaker (bsc#1154025, bsc#1154016).

• Add avr, epiphany and rx to target_list so that the common binutils can handle all objects we can create with crosses (bsc#1152590).

Update to binutils 2.32:

• The binutils now support for the C-SKY processor series.
• The x86 assembler now supports a -mvexwig=[0|1] option to control encoding of VEX.W-ignored (WIG) VEX instructions. It also has a new -mx86-used-note=[yes|no] option to generate (or not) x86 GNU property notes.
• The MIPS assembler now supports the Loongson EXTensions R2 (EXT2), the Loongson EXTensions (EXT) instructions, the Loongson Content Address Memory (CAM) ASE and the Loongson MultiMedia extensions Instructions (MMI) ASE.
• The addr2line, c++filt, nm and objdump tools now have a default limit on the maximum amount of recursion that is allowed whilst demangling strings. This limit can be disabled if necessary.
• Objdump's --disassemble option can now take a parameter, specifying the starting symbol for disassembly. Disassembly will continue from this symbol up to the next symbol or the end of the function.
• The BFD linker will now report property change in linker map file when merging GNU properties.
• The BFD linker's -t option now doesn't report members within archives, unless -t is given twice. This makes it more useful when generating a list of files that should be packaged for a …

It was discovered that GNU binutils contained a large number of security issues. If a user or automated system were tricked into processing a specially-crafted file, a remote attacker could cause GNU binutils to crash, resulting in a denial of service, or possibly execute arbitrary code.