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<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 python-pyinstaller 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-2024-1742</ID>
		</Identification>
		<Status>Final</Status>
		<Version>1.0</Version>
		<RevisionHistory>
			<Revision>
				<Number>1.0</Number>
				<Date>2024-06-21</Date>
				<Description>Initial</Description>
			</Revision>
		</RevisionHistory>
		<InitialReleaseDate>2024-06-21</InitialReleaseDate>
		<CurrentReleaseDate>2024-06-21</CurrentReleaseDate>
		<Generator>
			<Engine>openEuler SA Tool V1.0</Engine>
			<Date>2024-06-21</Date>
		</Generator>
	</DocumentTracking>
	<DocumentNotes>
		<Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">python-pyinstaller security update</Note>
		<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for python-pyinstaller is now available for openEuler-24.03-LTS.</Note>
		<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">PyInstaller bundles a Python application and all its dependencies into a single package. The user can run the packaged app without installing a Python interpreter or any modules.

Security Fix(es):

PyInstaller bundles a Python application and all its dependencies into a single package. A PyInstaller built application, elevated as a privileged process, may be tricked by an unprivileged attacker into deleting files the unprivileged user does not otherwise have access to. A user is affected if **all** the following are satisfied: 1. The user runs an application containing either `matplotlib` or `win32com`. 2. The application is ran as administrator (or at least a user with higher privileges than the attacker). 3. The user&apos;s temporary directory is not locked to that specific user (most likely due to `TMP`/`TEMP` environment variables pointing to an unprotected, arbitrary, non default location). Either: A. The attacker is able to very carefully time the replacement of a temporary file with a symlink. This switch must occur exactly between `shutil.rmtree()`&apos;s builtin symlink check and the deletion itself B: The application was built with Python 3.7.x or earlier which has no protection against Directory Junctions links. The vulnerability has been addressed in PR #7827 which corresponds to `pyinstaller &gt;= 5.13.1`. Users are advised to upgrade. There are no known workarounds for this vulnerability.(CVE-2023-49797)</Note>
		<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for python-pyinstaller 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">python-pyinstaller</Note>
	</DocumentNotes>
	<DocumentReferences>
		<Reference Type="Self">
			<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1742</URL>
		</Reference>
		<Reference Type="openEuler CVE">
			<URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-49797</URL>
		</Reference>
		<Reference Type="Other">
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2023-49797</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="python-pyinstaller-debuginfo-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python-pyinstaller-debuginfo-5.13.0-2.oe2403.aarch64.rpm</FullProductName>
			<FullProductName ProductID="python-pyinstaller-debugsource-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python-pyinstaller-debugsource-5.13.0-2.oe2403.aarch64.rpm</FullProductName>
			<FullProductName ProductID="python-pyinstaller-help-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python-pyinstaller-help-5.13.0-2.oe2403.aarch64.rpm</FullProductName>
			<FullProductName ProductID="python3-pyinstaller-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python3-pyinstaller-5.13.0-2.oe2403.aarch64.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="src">
			<FullProductName ProductID="python-pyinstaller-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python-pyinstaller-5.13.0-2.oe2403.src.rpm</FullProductName>
		</Branch>
		<Branch Type="Package Arch" Name="x86_64">
			<FullProductName ProductID="python-pyinstaller-debuginfo-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python-pyinstaller-debuginfo-5.13.0-2.oe2403.x86_64.rpm</FullProductName>
			<FullProductName ProductID="python-pyinstaller-help-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python-pyinstaller-help-5.13.0-2.oe2403.x86_64.rpm</FullProductName>
			<FullProductName ProductID="python-pyinstaller-debugsource-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python-pyinstaller-debugsource-5.13.0-2.oe2403.x86_64.rpm</FullProductName>
			<FullProductName ProductID="python3-pyinstaller-5.13.0-2" CPE="cpe:/a:openEuler:openEuler:24.03-LTS">python3-pyinstaller-5.13.0-2.oe2403.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">PyInstaller bundles a Python application and all its dependencies into a single package. A PyInstaller built application, elevated as a privileged process, may be tricked by an unprivileged attacker into deleting files the unprivileged user does not otherwise have access to. A user is affected if **all** the following are satisfied: 1. The user runs an application containing either `matplotlib` or `win32com`. 2. The application is ran as administrator (or at least a user with higher privileges than the attacker). 3. The user&apos;s temporary directory is not locked to that specific user (most likely due to `TMP`/`TEMP` environment variables pointing to an unprotected, arbitrary, non default location). Either: A. The attacker is able to very carefully time the replacement of a temporary file with a symlink. This switch must occur exactly between `shutil.rmtree()`&apos;s builtin symlink check and the deletion itself B: The application was built with Python 3.7.x or earlier which has no protection against Directory Junctions links. The vulnerability has been addressed in PR #7827 which corresponds to `pyinstaller &gt;= 5.13.1`. Users are advised to upgrade. There are no known workarounds for this vulnerability.</Note>
		</Notes>
		<ReleaseDate>2024-06-21</ReleaseDate>
		<CVE>CVE-2023-49797</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>7.8</BaseScore>
				<Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</Vector>
			</ScoreSet>
		</CVSSScoreSets>
		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>python-pyinstaller security update</Description>
				<DATE>2024-06-21</DATE>
				<URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1742</URL>
			</Remediation>
		</Remediations>
	</Vulnerability>
</cvrfdoc>