CVE-2020-21528

MEDIUM EPSS 37.2%

Published Aug 22, 20232y ago · Modified Jun 17, 20261w ago

5.5 CVSS 3.1

Medium

Published Aug 22, 2023 2y ago

Last Modified Jun 17, 2026 1w ago

Description

A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file.

CVSS Details

Base Score

5.5

Exploitability

1.8

Impact

3.6

Vector string

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

Attack Vector Local

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

37.2% percentile

Exploit & Patch Status

Public Exploit Known

No Patch Available

Affected Products 2

Vendor	Product	Version	Range
nasm	netwide_assembler	2.14.03	any
nasm	netwide_assembler	2.15	any

References 2

bugzilla.nasm.us https://bugzilla.nasm.us/show_bug.cgi?id=3392637

ExploitIssue TrackingVendor Advisory
security.gentoo.org https://security.gentoo.org/glsa/202312-09

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.