Multiple vulnerabilities in Netwide Assembler



| Updated: 2020-08-08
Risk Medium
Patch available NO
Number of vulnerabilities 4
CVE-ID CVE-2019-7147
CVE-2018-16382
CVE-2018-10316
CVE-2018-10016
CWE-ID CWE-119
CWE-125
CWE-190
CWE-369
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Netwide Assembler
Universal components / Libraries / Scripting languages

Vendor Netwide Assembler

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU36187

Risk: Medium

CVSSv4.0: 4.6 [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-2019-7147

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

A buffer over-read exists in the function crc64ib in crc64.c in nasmlib in Netwide Assembler (NASM) 2.14rc16. A crafted asm input can cause segmentation faults, leading to denial-of-service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Netwide Assembler: 2.14

CPE2.3 External links

https://bugzilla.nasm.us/show_bug.cgi?id=3392544


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds read

EUVDB-ID: #VU36736

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2018-16382

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to buffer over-read in x86/regflags.c. A remote attacker can perform a denial of service attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Netwide Assembler: 2.14

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2020-07/msg00015.html
https://lists.opensuse.org/opensuse-security-announce/2020-07/msg00017.html
https://bugzilla.nasm.us/show_bug.cgi?id=3392503


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.

3) Integer overflow

EUVDB-ID: #VU37171

Risk: Medium

CVSSv4.0: 4.6 [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-2018-10316

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Netwide Assembler (NASM) 2.14rc0 has an endless while loop in the assemble_file function of asm/nasm.c because of a globallineno integer overflow.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Netwide Assembler: 2.14

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2020-07/msg00015.html
https://lists.opensuse.org/opensuse-security-announce/2020-07/msg00017.html
https://bugzilla.nasm.us/show_bug.cgi?id=3392474


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Division by zero

EUVDB-ID: #VU37195

Risk: Medium

CVSSv4.0: 4.6 [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-2018-10016

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Netwide Assembler (NASM) 2.14rc0 has a division-by-zero vulnerability in the expr5 function in asm/eval.c via a malformed input file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Netwide Assembler: 2.14

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2020-07/msg00015.html
https://lists.opensuse.org/opensuse-security-announce/2020-07/msg00017.html
https://bugzilla.nasm.us/show_bug.cgi?id=3392473


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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