<?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 xz is now available for openEuler-24.03-LTS</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-2025-1430</ID>
		</Identification>
		<Status>Final</Status>
		<Version>1.0</Version>
		<RevisionHistory>
			<Revision>
				<Number>1.0</Number>
				<Date>2025-04-18</Date>
				<Description>Initial</Description>
			</Revision>
		</RevisionHistory>
		<InitialReleaseDate>2025-04-18</InitialReleaseDate>
		<CurrentReleaseDate>2025-04-18</CurrentReleaseDate>
		<Generator>
			<Engine>openEuler SA Tool V1.0</Engine>
			<Date>2025-04-18</Date>
		</Generator>
	</DocumentTracking>
	<DocumentNotes>
		<Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">xz security update</Note>
		<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for xz is now available for openEuler-24.03-LTS</Note>
		<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">XZ Utils is free general-purpose data compression software with a high compression ratio. XZ Utils were written for POSIX-like systems, but also work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.

Security Fix(es):

XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases.(CVE-2025-31115)</Note>
		<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for xz is now available for openEuler-24.03-LTS.

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">xz</Note>
	</DocumentNotes>
	<DocumentReferences>
		<Reference Type="Self">
			<URL>https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1430</URL>
		</Reference>
		<Reference Type="openEuler CVE">
			<URL>https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-31115</URL>
		</Reference>
		<Reference Type="Other">
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2025-31115</URL>
		</Reference>
	</DocumentReferences>
	<ProductTree xmlns="http://www.icasi.org/CVRF/schema/prod/1.1">
		<Branch Type="Product Name" Name="openEuler">
			<FullProductName ProductID="openEuler-24.03-LTS" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">openEuler-24.03-LTS</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="aarch64">
			<FullProductName ProductID="xz-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-5.4.7-5.oe2403.aarch64.rpm</FullProductName>
			<FullProductName ProductID="xz-debuginfo-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-debuginfo-5.4.7-5.oe2403.aarch64.rpm</FullProductName>
			<FullProductName ProductID="xz-debugsource-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-debugsource-5.4.7-5.oe2403.aarch64.rpm</FullProductName>
			<FullProductName ProductID="xz-devel-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-devel-5.4.7-5.oe2403.aarch64.rpm</FullProductName>
			<FullProductName ProductID="xz-libs-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-libs-5.4.7-5.oe2403.aarch64.rpm</FullProductName>
			<FullProductName ProductID="xz-lzma-compat-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-lzma-compat-5.4.7-5.oe2403.aarch64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="src">
			<FullProductName ProductID="xz-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-5.4.7-5.oe2403.src.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="x86_64">
			<FullProductName ProductID="xz-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-5.4.7-5.oe2403.x86_64.rpm</FullProductName>
			<FullProductName ProductID="xz-debuginfo-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-debuginfo-5.4.7-5.oe2403.x86_64.rpm</FullProductName>
			<FullProductName ProductID="xz-debugsource-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-debugsource-5.4.7-5.oe2403.x86_64.rpm</FullProductName>
			<FullProductName ProductID="xz-devel-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-devel-5.4.7-5.oe2403.x86_64.rpm</FullProductName>
			<FullProductName ProductID="xz-libs-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-libs-5.4.7-5.oe2403.x86_64.rpm</FullProductName>
			<FullProductName ProductID="xz-lzma-compat-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-lzma-compat-5.4.7-5.oe2403.x86_64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="noarch">
			<FullProductName ProductID="xz-help-5.4.7-5" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">xz-help-5.4.7-5.oe2403.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">XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases.</Note>
		</Notes>
		<ReleaseDate>2025-04-18</ReleaseDate>
		<CVE>CVE-2025-31115</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-24.03-LTS</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>High</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>8.2</BaseScore>
				<Vector>AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>xz security update</Description>
				<DATE>2025-04-18</DATE>
				<URL>https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1430</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
</cvrfdoc>