<?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 openvpn is now available for openEuler-20.03-LTS and 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-2021-1064</ID>
		</Identification>
		<Status>Final</Status>
		<Version>1.0</Version>
		<RevisionHistory>
			<Revision>
				<Number>1.0</Number>
				<Date>2021-03-05</Date>
				<Description>Initial</Description>
			</Revision>
		</RevisionHistory>
		<InitialReleaseDate>2021-03-05</InitialReleaseDate>
		<CurrentReleaseDate>2021-03-05</CurrentReleaseDate>
		<Generator>
			<Engine>openEuler SA Tool V1.0</Engine>
			<Date>2021-03-05</Date>
		</Generator>
	</DocumentTracking>
	<DocumentNotes>
		<Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">openvpn security update</Note>
		<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for openvpn is now available for openEuler-20.03-LTS and openEuler-20.03-LTS-SP1.</Note>
		<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">OpenVPN is a full-featured open source SSL VPN solution that accommodates a wide range of configurations, including remote access, site-to-site VPNs, Wi-Fi security, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access-controls. Starting with the fundamental premise that complexity is the enemy of security, OpenVPN offers a cost-effective, lightweight alternative to other VPN technologies that is well-adapted for the SME and enterprise markets.

Security Fix(es):

An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet arrives before the data channel crypto parameters have been initialized, the victim's connection will be dropped. This requires careful timing due to the small time window (usually within a few seconds) between the victim client connection starting and the server PUSH_REPLY response back to the client. This attack will only work if Negotiable Cipher Parameters (NCP) is in use.(CVE-2020-11810)</Note>
		<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for openvpn is now available for openEuler-20.03-LTS and openEuler-20.03-LTS-SP1.

openEuler Security has rated this update as having a security impact of low. 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">Low</Note>
		<Note Title="Affected Component" Type="General" Ordinal="6" xml:lang="en">openvpn</Note>
	</DocumentNotes>
	<DocumentReferences>
		<Reference Type="Self">
			<URL>https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1064</URL>
		</Reference>
		<Reference Type="openEuler CVE">
			<URL>https://openeuler.org/en/security/cve/detail.html?id=CVE-2020-11810</URL>
		</Reference>
		<Reference Type="Other">
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2020-11810</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" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openEuler-20.03-LTS</FullProductName>
			<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="openvpn-debuginfo-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-debuginfo-2.4.8-5.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-debugsource-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-debugsource-2.4.8-5.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-devel-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-devel-2.4.8-5.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-2.4.8-5.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-2.4.8-6.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-debuginfo-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-debuginfo-2.4.8-6.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-devel-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-devel-2.4.8-6.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-debugsource-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-debugsource-2.4.8-6.oe1.aarch64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="noarch">
			<FullProductName ProductID="openvpn-help-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-help-2.4.8-5.oe1.noarch.rpm</FullProductName>
			<FullProductName ProductID="openvpn-help-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-help-2.4.8-6.oe1.noarch.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="src">
			<FullProductName ProductID="openvpn-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-2.4.8-5.oe1.src.rpm</FullProductName>
			<FullProductName ProductID="openvpn-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-2.4.8-6.oe1.src.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="x86_64">
			<FullProductName ProductID="openvpn-debuginfo-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-debuginfo-2.4.8-5.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-debugsource-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-debugsource-2.4.8-5.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-2.4.8-5.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-devel-2.4.8-5" CPE="cpe:/a:openEuler:openEuler:20.03-LTS">openvpn-devel-2.4.8-5.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-debuginfo-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-debuginfo-2.4.8-6.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-debugsource-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-debugsource-2.4.8-6.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-2.4.8-6.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="openvpn-devel-2.4.8-6" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">openvpn-devel-2.4.8-6.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">An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet arrives before the data channel crypto parameters have been initialized, the victim's connection will be dropped. This requires careful timing due to the small time window (usually within a few seconds) between the victim client connection starting and the server PUSH_REPLY response back to the client. This attack will only work if Negotiable Cipher Parameters (NCP) is in use.</Note>
		</Notes>
		<ReleaseDate>2021-03-05</ReleaseDate>
		<CVE>CVE-2020-11810</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-20.03-LTS</ProductID>
				<ProductID>openEuler-20.03-LTS-SP1</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>Low</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>3.7</BaseScore>
				<Vector>AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>openvpn security update</Description>
				<DATE>2021-03-05</DATE>
				<URL>https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1064</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
</cvrfdoc>