USN-8248-1: NASM vulnerabilities

Daisy Chen discovered that NASM was vulnerable to a heap buffer overflow when handling certain input. An attacker could possibly use this issue to cause NASM to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2023-31722 It was discovered that NASM incorrectly...

JLSEC-2026-199

Buffer Overflow in Netwide Assembler NASM v2.15.xx allows attackers to cause a denial of service via 'crc64i' in the component 'nasmlib/crc64'. This issue is different than CVE-2019-7147...

JLSEC-2026-204

NASM v2.16 was discovered to contain a global buffer overflow in the component dbgdbgtypevalue at /output/outdbg.c...

JLSEC-2026-203

NASM v2.16 was discovered to contain a heap buffer overflow in the component quoteforpmake asm/nasm.c:856...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007353)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007353 advisory. In the Linux kernel, the following vulnerability has been resolved: arm64: Restrict CPUBIGENDIAN to GNU as or LLVM IAS 15.x or newer Prior to LLVM 15.0.0, LLVM's...

Linux Distros Unpatched Vulnerability : CVE-2026-6069

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NASM's disasm function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when slen...

SUSE CVE-2026-6067

A heap buffer overflow vulnerability exists in the Netwide Assembler NASM due to a lack of bounds checking in the objdirective function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service crash, and...

SUSE CVE-2026-6069

NASM's disasm function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when slen exceeds the buffer capacity...

EUVD-2026-21378

A heap buffer overflow vulnerability exists in the Netwide Assembler NASM due to a lack of bounds checking in the objdirective function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service crash, and...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow due to insufficient bounds checking in the objdirective function. An attacker can cause heap memory corruption, application crash, or execute arbitrary code by submitting a specially crafted .asm file...

CVE-2026-6068

NASM contains a heap use after free vulnerability in response file -@ processing where a dangling pointer to freed memory is stored in the global dependfile and later dereferenced, as the response-file buffer is freed before the pointer is used, allowing for data corruption or remote code executi...

CVE-2026-6067

A heap buffer overflow vulnerability exists in the Netwide Assembler NASM due to a lack of bounds checking in the objdirective function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service crash, and...

UBUNTU-CVE-2026-6067

A heap buffer overflow vulnerability exists in the Netwide Assembler NASM due to a lack of bounds checking in the objdirective function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service crash, and...

CVE-2026-6067

A heap buffer overflow vulnerability exists in the Netwide Assembler NASM due to a lack of bounds checking in the objdirective function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service crash, and...

CVE-2026-6069 CVE-2026-6069

NASM’s disasm function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when slen exceeds the buffer capacity...

CVE-2026-6069 CVE-2026-6069

NASM’s disasm function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when slen exceeds the buffer capacity...

CVE-2026-6068

CVE-2026-6068 affects NASM. A heap-use-after-free in response file processing (-@) stores a dangling pointer to freed memory in the global depend_file, which is later dereferenced after the response-file buffer is freed. This can cause data corruption and, per sources, may enable remote code exec...

CVE-2026-6067

A heap buffer overflow vulnerability exists in the Netwide Assembler (NASM) due to a lack of bounds checking in the obj_directive() function. A user assembling a malicious .asm file could exploit this to cause heap memory corruption , a denial of service (crash) , or arbitrary code execution . Th...

CVE-2026-6067 CVE-2026-6067

A heap buffer overflow vulnerability exists in the Netwide Assembler NASM due to a lack of bounds checking in the objdirective function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service crash, and...

CVE-2026-6067 CVE-2026-6067

A heap buffer overflow vulnerability exists in the Netwide Assembler NASM due to a lack of bounds checking in the objdirective function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service crash, and...