Use-after-free in Netwide Assembler - CVE-2019-8343
Published: February 19, 2019
Vulnerability identifier: #VU17764
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-8343
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to gain elevated privileges.
The vulnerability exists due to a use-after-free error in the paste_tokens function, as defined in the asm/preproc.c source code file. A local attacker can access the targeted system, make system calls that submit malicious input, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
Netwide Assembler
Arch Linux
Gentoo Linux
dev-lang/nasm
Arch Linux
Gentoo Linux
dev-lang/nasm
How to mitigate CVE-2019-8343
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
dev-lang/nasm - update to 2.16.01