<?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 libxml2 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-2022-2080</ID>
		</Identification>
		<Status>Final</Status>
		<Version>1.0</Version>
		<RevisionHistory>
			<Revision>
				<Number>1.0</Number>
				<Date>2022-11-11</Date>
				<Description>Initial</Description>
			</Revision>
		</RevisionHistory>
		<InitialReleaseDate>2022-11-11</InitialReleaseDate>
		<CurrentReleaseDate>2022-11-11</CurrentReleaseDate>
		<Generator>
			<Engine>openEuler SA Tool V1.0</Engine>
			<Date>2022-11-11</Date>
		</Generator>
	</DocumentTracking>
	<DocumentNotes>
		<Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">libxml2 security update</Note>
		<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for libxml2 is now available for openEuler-20.03-LTS-SP1.</Note>
		<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The outputcan be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library.

Security Fix(es):

A flaw was found in libxml2. Parsing a XML document with the XML_PARSE_HUGE option enabled can result in an integer overflow because safety checks were missing in some functions. Also, the xmlParseEntityValue function didn&apos;t have any length limitation.(CVE-2022-40303)

A flaw was found in libxml2. When a reference cycle is detected in the XML entity cleanup function the XML entity data can be stored in a dictionary. In this case, the dictionary becomes corrupted resulting in logic errors, including memory errors like double free.(CVE-2022-40304)</Note>
		<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for libxml2 is now available for openEuler-20.03-LTS-SP1.

openEuler Security has rated this update as having a security impact of high. 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">High</Note>
		<Note Title="Affected Component" Type="General" Ordinal="6" xml:lang="en">libxml2</Note>
	</DocumentNotes>
	<DocumentReferences>
		<Reference Type="Self">
			<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2080</URL>
		</Reference>
		<Reference Type="openEuler CVE">
			<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2022-40303</URL>
			<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2022-40304</URL>
		</Reference>
		<Reference Type="Other">
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2022-40303</URL>
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2022-40304</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="python3-libxml2-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">python3-libxml2-2.9.10-32.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="libxml2-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-2.9.10-32.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="libxml2-devel-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-devel-2.9.10-32.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="python2-libxml2-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">python2-libxml2-2.9.10-32.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="libxml2-debugsource-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-debugsource-2.9.10-32.oe1.aarch64.rpm</FullProductName>
			<FullProductName ProductID="libxml2-debuginfo-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-debuginfo-2.9.10-32.oe1.aarch64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="noarch">
			<FullProductName ProductID="libxml2-help-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-help-2.9.10-32.oe1.noarch.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="src">
			<FullProductName ProductID="libxml2-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-2.9.10-32.oe1.src.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="x86_64">
			<FullProductName ProductID="libxml2-debugsource-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-debugsource-2.9.10-32.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="libxml2-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-2.9.10-32.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="python3-libxml2-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">python3-libxml2-2.9.10-32.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="libxml2-debuginfo-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-debuginfo-2.9.10-32.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="python2-libxml2-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">python2-libxml2-2.9.10-32.oe1.x86_64.rpm</FullProductName>
			<FullProductName ProductID="libxml2-devel-2.9.10-32" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">libxml2-devel-2.9.10-32.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 libxml2. Parsing a XML document with the XML_PARSE_HUGE option enabled can result in an integer overflow because safety checks were missing in some functions. Also, the xmlParseEntityValue function didn t have any length limitation.</Note>
		</Notes>
		<ReleaseDate>2022-11-11</ReleaseDate>
		<CVE>CVE-2022-40303</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-20.03-LTS-SP1</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>High</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>7.5</BaseScore>
				<Vector>AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>libxml2 security update</Description>
				<DATE>2022-11-11</DATE>
				<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2080</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="2" xml:lang="en">A flaw was found in libxml2. When a reference cycle is detected in the XML entity cleanup function the XML entity data can be stored in a dictionary. In this case, the dictionary becomes corrupted resulting in logic errors, including memory errors like double free.</Note>
		</Notes>
		<ReleaseDate>2022-11-11</ReleaseDate>
		<CVE>CVE-2022-40304</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-20.03-LTS-SP1</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>High</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>8.1</BaseScore>
				<Vector>AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>libxml2 security update</Description>
				<DATE>2022-11-11</DATE>
				<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2080</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
</cvrfdoc>