Bug 1758245 (CVE-2019-17054)

Summary:	CVE-2019-17054 kernel: privilege escalation in atalk_create in net/appletalk/ddp.c in the AF_APPLETALK network module
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, airlied, bdettelb, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jschorr, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, plougher, rt-maint, rvrbovsk, steved, williams
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:	2019-11-22 06:42:11 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:	1758246
Bug Blocks:	1758247

Description Dhananjay Arunesh 2019-10-03 16:42:36 UTC

A vulnerability was found in atalk_create in net/appletalk/ddp.c in the AF_APPLETALK network module in the Linux kernel does not enforce CAP_NET_RAW, which means that unprivileged users can create a raw socket, aka CID-6cc03e8aa36c.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0edc3f703f7bcaf550774b5d43ab727bcd0fe06b
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac

Comment 1 Dhananjay Arunesh 2019-10-03 16:43:44 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1758246]

Comment 2 Fedora Update System 2019-10-25 18:06:57 UTC

kernel-5.3.6-100.fc29, kernel-headers-5.3.6-100.fc29, kernel-tools-5.3.6-100.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.

Comment 3 Rohit Keshri 2019-11-22 06:42:16 UTC

Statement:

There was no shipped kernel version were seen affected with this problem. These files are not built in our source code.