<?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 libtpms is now available for openEuler-20.03-LTS-SP1</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-2022-1959</ID>
		</Identification>
		<Status>Final</Status>
		<Version>1.0</Version>
		<RevisionHistory>
			<Revision>
				<Number>1.0</Number>
				<Date>2022-09-23</Date>
				<Description>Initial</Description>
			</Revision>
		</RevisionHistory>
		<InitialReleaseDate>2022-09-23</InitialReleaseDate>
		<CurrentReleaseDate>2022-09-23</CurrentReleaseDate>
		<Generator>
			<Engine>openEuler SA Tool V1.0</Engine>
			<Date>2022-09-23</Date>
		</Generator>
	</DocumentTracking>
	<DocumentNotes>
		<Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">libtpms security update</Note>
		<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for libtpms is now available for openEuler-20.03-LTS-SP1.</Note>
		<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">A library providing TPM functionality for VMs. Targeted for integration into Qemu.

Security Fix(es):

A flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality.(CVE-2021-3505)</Note>
		<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for libtpms is now available for openEuler-20.03-LTS-SP1.

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">libtpms</Note>
	</DocumentNotes>
	<DocumentReferences>
		<Reference Type="Self">
			<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1959</URL>
		</Reference>
		<Reference Type="openEuler CVE">
			<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-3505</URL>
		</Reference>
		<Reference Type="Other">
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-3505</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-SP1" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openEuler-20.03-LTS-SP1</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="aarch64">
			<FullProductName ProductID="libtpms-debugsource-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-debugsource-0.7.3-7.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="libtpms-devel-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-devel-0.7.3-7.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="libtpms-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-0.7.3-7.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="libtpms-debuginfo-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-debuginfo-0.7.3-7.oe1.aarch64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="src">
			<FullProductName ProductID="libtpms-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-0.7.3-7.oe1.src.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="x86_64">
			<FullProductName ProductID="libtpms-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-0.7.3-7.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="libtpms-devel-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-devel-0.7.3-7.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="libtpms-debugsource-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-debugsource-0.7.3-7.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="libtpms-debuginfo-0.7.3-7" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libtpms-debuginfo-0.7.3-7.oe1.x86_64.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">A flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality.</Note>
		</Notes>
		<ReleaseDate>2022-09-23</ReleaseDate>
		<CVE>CVE-2021-3505</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-20.03-LTS-SP1</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>Medium</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>5.5</BaseScore>
				<Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>libtpms security update</Description>
				<DATE>2022-09-23</DATE>
				<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1959</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
</cvrfdoc>