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	<DocumentTitle xml:lang="en">An update for python-tornado is now available for openEuler-22.03-LTS-SP1,openEuler-24.03-LTS,openEuler-22.03-LTS-SP4,openEuler-22.03-LTS-SP3,openEuler-20.03-LTS-SP4</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-2024-2509</ID>
		</Identification>
		<Status>Final</Status>
		<Version>1.0</Version>
		<RevisionHistory>
			<Revision>
				<Number>1.0</Number>
				<Date>2024-12-06</Date>
				<Description>Initial</Description>
			</Revision>
		</RevisionHistory>
		<InitialReleaseDate>2024-12-06</InitialReleaseDate>
		<CurrentReleaseDate>2024-12-06</CurrentReleaseDate>
		<Generator>
			<Engine>openEuler SA Tool V1.0</Engine>
			<Date>2024-12-06</Date>
		</Generator>
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	<DocumentNotes>
		<Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">python-tornado security update</Note>
		<Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for python-tornado is now available for openEuler-22.03-LTS-SP1,openEuler-24.03-LTS,openEuler-22.03-LTS-SP4,openEuler-22.03-LTS-SP3,openEuler-20.03-LTS-SP4</Note>
		<Note Title="Description" Type="General" Ordinal="3" xml:lang="en">Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user.

Security Fix(es):

Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue.(CVE-2024-52804)</Note>
		<Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">An update for python-tornado is now available for openEuler-22.03-LTS-SP1,openEuler-24.03-LTS,openEuler-22.03-LTS-SP4,openEuler-22.03-LTS-SP3,openEuler-20.03-LTS-SP4.

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-tornado</Note>
	</DocumentNotes>
	<DocumentReferences>
		<Reference Type="Self">
			<URL>https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-2509</URL>
		</Reference>
		<Reference Type="openEuler CVE">
			<URL>https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2024-52804</URL>
		</Reference>
		<Reference Type="Other">
			<URL>https://nvd.nist.gov/vuln/detail/CVE-2024-52804</URL>
		</Reference>
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	<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">Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue.</Note>
		</Notes>
		<ReleaseDate>2024-12-06</ReleaseDate>
		<CVE>CVE-2024-52804</CVE>
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			<Threat Type="Impact">
				<Description>High</Description>
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		<CVSSScoreSets>
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				<BaseScore>7.5</BaseScore>
				<Vector>AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</Vector>
			</ScoreSet>
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		<Remediations>
			<Remediation Type="Vendor Fix">
				<Description>python-tornado security update</Description>
				<DATE>2024-12-06</DATE>
				<URL>https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-2509</URL>
			</Remediation>
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