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CVE-2020-21687

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Date: August 22, 2023

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.

Language: C

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2020-21687
https://bugzilla.nasm.us/show_bug.cgi?id=3392645
https://access.redhat.com/security/cve/CVE-2020-21687
https://security-tracker.debian.org/tracker/CVE-2020-21687
https://www.mend.io/vulnerability-database/CVE-2020-21687

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Top Fix

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Upgrade to version nasm-2.15.02

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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