<?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 zsh is now available for openEuler-22.03-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-2022-2094</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">zsh security update</Note>
		<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for zsh is now available for openEuler-22.03-LTS.</Note>
		<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">The zsh is a shell designed for interactive use, and it is also a powerful scripting language. Many of the useful features of bash, ksh, and tcsh were incorporated into zsh. It can match files by file extension without running an external program, share command history with any shell, and more.

Security Fix(es):

In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion.(CVE-2021-45444)</Note>
		<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for zsh is now available for openEuler-22.03-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">zsh</Note>
	</DocumentNotes>
	<DocumentReferences>
		<Reference Type="Self">
			<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2094</URL>
		</Reference>
		<Reference Type="openEuler CVE">
			<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-45444</URL>
		</Reference>
		<Reference Type="Other">
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2021-45444</URL>
		</Reference>
	</DocumentReferences>
	<ProductTree xmlns="http://www.icasi.org/CVRF/schema/prod/1.1">
		<Branch Type="Product Name" Name="openEuler">
			<FullProductName ProductID="openEuler-22.03-LTS" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">openEuler-22.03-LTS</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="aarch64">
			<FullProductName ProductID="zsh-5.8-3" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">zsh-5.8-3.oe2203.aarch64.rpm</FullProductName>
			<FullProductName ProductID="zsh-debugsource-5.8-3" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">zsh-debugsource-5.8-3.oe2203.aarch64.rpm</FullProductName>
			<FullProductName ProductID="zsh-debuginfo-5.8-3" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">zsh-debuginfo-5.8-3.oe2203.aarch64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="noarch">
			<FullProductName ProductID="zsh-help-5.8-3" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">zsh-help-5.8-3.oe2203.noarch.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="src">
			<FullProductName ProductID="zsh-5.8-3" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">zsh-5.8-3.oe2203.src.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="x86_64">
			<FullProductName ProductID="zsh-5.8-3" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">zsh-5.8-3.oe2203.x86_64.rpm</FullProductName>
			<FullProductName ProductID="zsh-debugsource-5.8-3" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">zsh-debugsource-5.8-3.oe2203.x86_64.rpm</FullProductName>
			<FullProductName ProductID="zsh-debuginfo-5.8-3" CPE="cpe:/a:openEuler:openEuler:22.03-LTS">zsh-debuginfo-5.8-3.oe2203.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">In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion.</Note>
		</Notes>
		<ReleaseDate>2022-11-11</ReleaseDate>
		<CVE>CVE-2021-45444</CVE>
		<ProductStatuses>
			<Status Type="Fixed">
				<ProductID>openEuler-22.03-LTS</ProductID>
			</Status>
		</ProductStatuses>
		<Threats>
			<Threat Type="Impact">
				<Description>High</Description>
			</Threat>
		</Threats>
		<CVSSScoreSets>
			<ScoreSet>
				<BaseScore>8.8</BaseScore>
				<Vector>AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>zsh security update</Description>
				<DATE>2022-11-11</DATE>
				<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2094</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
</cvrfdoc>