<?xml version="1.0" encoding="UTF-8"?>
<cvrfdoc xmlns="http://www.icasi.org/CVRF/schema/cvrf/1.1" xmlns:cvrf="http://www.icasi.org/CVRF/schema/cvrf/1.1">
	<DocumentTitle xml:lang="en">An update for nasm is now available for openEuler-20.03-LTS-SP4</DocumentTitle>
	<DocumentType>Security Advisory</DocumentType>
	<DocumentPublisher Type="Vendor">
		<ContactDetails>openeuler-security@openeuler.org</ContactDetails>
		<IssuingAuthority>openEuler security committee</IssuingAuthority>
	</DocumentPublisher>
	<DocumentTracking>
		<Identification>
			<ID>openEuler-SA-2024-1814</ID>
		</Identification>
		<Status>Final</Status>
		<Version>1.0</Version>
		<RevisionHistory>
			<Revision>
				<Number>1.0</Number>
				<Date>2024-07-05</Date>
				<Description>Initial</Description>
			</Revision>
		</RevisionHistory>
		<InitialReleaseDate>2024-07-05</InitialReleaseDate>
		<CurrentReleaseDate>2024-07-05</CurrentReleaseDate>
		<Generator>
			<Engine>openEuler SA Tool V1.0</Engine>
			<Date>2024-07-05</Date>
		</Generator>
	</DocumentTracking>
	<DocumentNotes>
		<Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">nasm security update</Note>
		<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for nasm is now available for openEuler-20.03-LTS-SP4</Note>
		<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">NASM is the Netwide Assembler, a free portable assembler for the Intel 80x86 microprocessor series, using primarily the traditional Intel instruction mnemonics and syntax. It also provides tools in RDOFF binary format, includes linker, library manager, loader, and information dump.

Security Fix(es):

Buffer Overflow vulnerability in hash_findi function in hashtbl.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file.(CVE-2020-21685)

A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.(CVE-2020-21686)

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.(CVE-2020-21687)</Note>
		<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for nasm is now available for openEuler-20.03-LTS-SP4.

openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.</Note>
		<Note Title="Severity" Type="General" Ordinal="5" xml:lang="en">Medium</Note>
		<Note Title="Affected Component" Type="General" Ordinal="6" xml:lang="en">nasm</Note>
	</DocumentNotes>
	<DocumentReferences>
		<Reference Type="Self">
			<URL>https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1814</URL>
		</Reference>
		<Reference Type="openEuler CVE">
			<URL>https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2020-21685</URL>
			<URL>https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2020-21686</URL>
			<URL>https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2020-21687</URL>
		</Reference>
		<Reference Type="Other">
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2020-21685</URL>
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2020-21686</URL>
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2020-21687</URL>
		</Reference>
	</DocumentReferences>
	<ProductTree xmlns="http://www.icasi.org/CVRF/schema/prod/1.1">
		<Branch Type="Product Name" Name="openEuler">
			<FullProductName ProductID="openEuler-20.03-LTS-SP4" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">openEuler-20.03-LTS-SP4</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="aarch64">
			<FullProductName ProductID="nasm-2.15.05-1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">nasm-2.15.05-1.oe2003sp4.aarch64.rpm</FullProductName>
			<FullProductName ProductID="nasm-debuginfo-2.15.05-1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">nasm-debuginfo-2.15.05-1.oe2003sp4.aarch64.rpm</FullProductName>
			<FullProductName ProductID="nasm-debugsource-2.15.05-1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">nasm-debugsource-2.15.05-1.oe2003sp4.aarch64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="src">
			<FullProductName ProductID="nasm-2.15.05-1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">nasm-2.15.05-1.oe2003sp4.src.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="x86_64">
			<FullProductName ProductID="nasm-2.15.05-1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">nasm-2.15.05-1.oe2003sp4.x86_64.rpm</FullProductName>
			<FullProductName ProductID="nasm-debuginfo-2.15.05-1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">nasm-debuginfo-2.15.05-1.oe2003sp4.x86_64.rpm</FullProductName>
			<FullProductName ProductID="nasm-debugsource-2.15.05-1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">nasm-debugsource-2.15.05-1.oe2003sp4.x86_64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="noarch">
			<FullProductName ProductID="nasm-help-2.15.05-1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP4">nasm-help-2.15.05-1.oe2003sp4.noarch.rpm</FullProductName>
		</Branch>
	</ProductTree>
	<Vulnerability Ordinal="1" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
		<Notes>
			<Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">Buffer Overflow vulnerability in hash_findi function in hashtbl.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file.</Note>
		</Notes>
		<ReleaseDate>2024-07-05</ReleaseDate>
		<CVE>CVE-2020-21685</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-20.03-LTS-SP4</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>Medium</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>5.5</BaseScore>
				<Vector>AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>nasm security update</Description>
				<DATE>2024-07-05</DATE>
				<URL>https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1814</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
	<Vulnerability Ordinal="2" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
		<Notes>
			<Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.</Note>
		</Notes>
		<ReleaseDate>2024-07-05</ReleaseDate>
		<CVE>CVE-2020-21686</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-20.03-LTS-SP4</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>Medium</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>5.5</BaseScore>
				<Vector>AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>nasm security update</Description>
				<DATE>2024-07-05</DATE>
				<URL>https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1814</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
	<Vulnerability Ordinal="3" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1">
		<Notes>
			<Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">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.</Note>
		</Notes>
		<ReleaseDate>2024-07-05</ReleaseDate>
		<CVE>CVE-2020-21687</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-20.03-LTS-SP4</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>Medium</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>5.5</BaseScore>
				<Vector>AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>nasm security update</Description>
				<DATE>2024-07-05</DATE>
				<URL>https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1814</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
</cvrfdoc>