Bug 1890967 (CVE-2020-27638)

Summary:	CVE-2020-27638 fastd: DoS'able memory leak on invalid packets
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	felix
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-10-23 14:21:24 UTC	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:	1890968, 1890969, 1890970
Bug Blocks:

Description Michael Kaplan 2020-10-23 12:15:41 UTC

receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code.

References:

https://bugs.debian.org/972521
https://fastd.readthedocs.io/en/stable/releases/v21.html
https://github.com/NeoRaider/fastd/commit/737925113363b6130879729cdff9ccc46c33eaea

Comment 1 Michael Kaplan 2020-10-23 12:16:08 UTC

Created fastd tracking bugs for this issue:

Affects: epel-7 [bug 1890969]
Affects: epel-8 [bug 1890970]
Affects: fedora-all [bug 1890968]

Comment 2 Product Security DevOps Team 2020-10-23 14:21:24 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.