MGASA-2020-0303

Netwide Assembler (NASM) 2.13 has a stack-based buffer over-read in the disasm function of the disasm/disasm.c file. Remote attackers could leverage this vulnerability to cause a denial of service or possibly have unspecified other impact via a crafted ELF file (CVE-2018-10254).

Netwide Assembler (NASM) 2.14rc0 has an endless while loop in the assemble_file function of asm/nasm.c because of a globallineno integer overflow (CVE-2018-10316).

Netwide Assembler (NASM) 2.14rc15 has a buffer over-read in x86/regflags.c (CVE-2018-16382).

NASM nasm-2.13.03 nasm- 2.14rc15 version 2.14rc15 and earlier contains a memory corruption (crashed) of nasm when handling a crafted file due to function assemblefile(inname, dependptr) at asm/nasm.c:482. vulnerability in function assemblefile(inname, dependptr) at asm/nasm.c:482. that can result in aborting/crash nasm program. This attack appear to be exploitable via a specially crafted asm file (CVE-2018-1000667).

asm/labels.c in Netwide Assembler (NASM) is prone to NULL Pointer Dereference, which allows the attacker to cause a denial of service via a crafted file (CVE-2018-16517).

Netwide Assembler (NASM) 2.14rc15 has an invalid memory write (segmentation fault) in expand_smacro in preproc.c, which allows attackers to cause a denial of service via a crafted input file (CVE-2018-16999).

Netwide Assembler (NASM) 2.14rc16 has a heap-based buffer over-read in expandmmacparams in asm/preproc.c for the special cases of the % and $ and ! characters (CVE-2018-19215).

Netwide Assembler (NASM) 2.14rc15 has a heap-based buffer over-read in expandmmacparams in asm/preproc.c for insufficient input (CVE-2018-19214).