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PRIOn knowledge basePRION:CVE-2020-21687

HistoryAug 22, 2023 - 7:16 p.m.

Buffer overflow

2023-08-2219:16:00

PRIOn knowledge base

www.prio-n.com

vulnerability

stdscan.c

nasm 2.15rc0

buffer overflow

denial of service

crafted asm file

nvd

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

29.6%

JSON

Buffer Overflow vulnerability in scan function in stdscan.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file.

CPENameOperatorVersion
netwide_assemblereq2.15 rc0

CPE	Name	Operator	Version
	netwide_assembler	eq	2.15 rc0

References

bugzilla.nasm.us/show_bug.cgi?id=3392645

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

29.6%

JSON

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