Bug 2214469 (CVE-2023-32732)

Summary:	CVE-2023-32732 gRPC: denial of service
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, jburrell, rogbas, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in gRPC, which is vulnerable to a denial of service, caused by a base64 encoding error for "-bin" suffixed headers. By sending a specially crafted request, a remote attacker can cause a termination of the connection between an HTTP2 proxy and a gRPC server, resulting in a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2214470, 2214471, 2214472
Bug Blocks:	2213811

Description Avinash Hanwate 2023-06-13 06:04:30 UTC

gRPC contains a vulnerability whereby a client can cause a termination of connection between a HTTP2 proxy and a gRPC server: a base64 encoding error for `-bin` suffixed headers will result in a disconnection by the gRPC server, but is typically allowed by HTTP2 proxies. We recommend upgrading beyond the commit in  https://github.com/grpc/grpc/pull/32309 https://www.google.com/url

Comment 1 Avinash Hanwate 2023-06-13 06:05:13 UTC

Created flatbuffers tracking bugs for this issue:

Affects: fedora-all [bug 2214471]


Created grpc tracking bugs for this issue:

Affects: fedora-all [bug 2214470]
Affects: openstack-rdo [bug 2214472]