Heap-Based Buffer Over-Read in Netwide Assembler by NASM
CVE-2019-20352

7.1HIGH

Key Information:

Vendor

Nasm

Status
Netwide Assembler
Vendor
CVE Published:
6 January 2020

What is CVE-2019-20352?

A heap-based buffer over-read vulnerability exists in Netwide Assembler (NASM) 2.15rc0. This issue arises when a specially crafted .asm file is processed, leading to an overflow effect in the set_text_free function. The vulnerability can be exploited through the expand_one_smacro function in the asm/preproc.c module, potentially allowing an attacker to manipulate memory retrieval processes.

References

https://bugzilla.nasm.us/show_bug.cgi?id=3392636
x_refsource_MISC

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.