Bug 2102598 (CVE-2022-33070)

Summary:	CVE-2022-33070 protobuf-c: invalid arithmetic shift via the function parse_tag_and_wiretype may lead to DoS
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	areber, cse.cem+redhatbugz
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in protobuf-c. The issue occurs due to an invalid arithmetic shift via the parse_tag_and_wiretype in the protobuf-c/protobuf-c.c function. This flaw allows attackers to cause a denial of service (DoS) via unspecified vectors.	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:	2102599, 2102961, 2102962
Bug Blocks:	2102600

Description Marian Rehak 2022-06-30 10:13:40 UTC

An invalid arithmetic shift via the function parse_tag_and_wiretype in protobuf-c/protobuf-c.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via unspecified vectors.

Reference:

https://github.com/protobuf-c/protobuf-c/pull/508
https://github.com/protobuf-c/protobuf-c/issues/506

Comment 1 Marian Rehak 2022-06-30 10:13:54 UTC

Created protobuf-c tracking bugs for this issue:

Affects: fedora-all [bug 2102599]