Use-after-free in Netwide Assembler - CVE-2018-20535
Published: December 28, 2018 / Updated: August 8, 2020
Vulnerability identifier: #VU36260
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-20535
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Netwide Assembler
Affected software:
Netwide Assembler
Netwide Assembler
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
There is a use-after-free at asm/preproc.c (function pp_getline) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service during a line-number increment attempt.
How to mitigate CVE-2018-20535
Install update from vendor's website.