Bug 2196088 (CVE-2022-43681)

Summary:	CVE-2022-43681 frr: out-of-bounds read exists in the BGP daemon of FRRouting
Product:	[Other] Security Response	Reporter:	Sandipan Roy <saroy>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fhrdina, mruprich
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	An out-of-bounds read flaw exists in the BGP daemon of FRRouting. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads out of the bounds of the packet, throwing a SIGABRT signal and exiting. This issue results in a bgpd daemon restart, causing 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:	2196094, 2196794
Bug Blocks:	2193421

Description Sandipan Roy 2023-05-08 04:09:17 UTC

An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.

https://forescout.com
https://github.com/advisories/GHSA-x7mf-v6gh-vm4g

Comment 4 errata-xmlrpc 2023-11-07 08:16:39 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:6434 https://access.redhat.com/errata/RHSA-2023:6434