Privilege escalation in Netwide Assembler
| Risk | Low |
| Patch available | NO |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-8343 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Netwide Assembler Universal components / Libraries / Scripting languages |
| Vendor | Netwide Assembler |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Use-after-free
EUVDB-ID: #VU17764
Risk: Low
CVSSv3.1: 8.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:U/RC:C]
CVE-ID: CVE-2019-8343
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsNetwide Assembler: 2.14.02
External linkshttp://bugzilla.nasm.us/show_bug.cgi?id=3392556
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
