Bug 2294696 (CVE-2016-20022)

Summary:	CVE-2016-20022 kernel: USB: improper validation of wMaxPacketValue entries in endpoint descriptors
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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Fixed In Version:	kernel 4.8	Doc Type:	If docs needed, set a value
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description Mauro Matteo Cascella 2024-06-28 06:58:45 UTC

In the Linux kernel before 4.8, usb_parse_endpoint in drivers/usb/core/config.c does not validate the wMaxPacketSize field of an endpoint descriptor. NOTE: This vulnerability only affects products that are no longer supported by the supplier.

References:
https://github.com/torvalds/linux/commit/aed9d65ac3278d4febd8665bd7db59ef53e825fe
https://lore.kernel.org/lkml/1486322541-8206-8-git-send-email-w%401wt.eu/
https://www.spinics.net/lists/linux-usb/msg144177.html