Bug 2058640 (CVE-2022-26126)

Summary:	CVE-2022-26126 frrouting: Misusing strdup leads to stack overflow in isis_nb_notifications.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fhrdina, mruprich, tkorbar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	frrouting 8.2	Doc Type:	If docs needed, set a value
Doc Text:	frrouting is vulnerable to a flaw that can cause stack overflow due to processing binary data as simple string data. Since c string data is not being processed when processing packets , correct binary aware functions should be used. There is high impact to availability due to the fact that the process up-time can be made unreliable.	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:	2072474, 2072475, 2072476
Bug Blocks:	2058651

Description Pedro Sampaio 2022-02-25 14:13:37 UTC

Buffer overflow vulnerabilities exist in FRRouting through 8.1.0 due to the use of strdup with a non-zero-terminated binary string in isis_nb_notifications.c.

Upstream bug:

https://github.com/FRRouting/frr/issues/10505

Comment 1 devthomp 2022-04-06 11:28:07 UTC

Created frr tracking bugs for this issue:

Affects: fedora-all [bug 2072476]

Comment 3 devthomp 2022-04-10 15:46:54 UTC

patch:
https://github.com/whichbug/frr/commit/ac3133450de12ba86c051265fc0f1b12bc57b40c