Bug 1724637 (CVE-2019-12984)

Summary:	CVE-2019-12984 kernel: null pointer dereference in function nfc_genl_deactivate_target() in net/nfc/netlink.c
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, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, plougher, rt-maint, rvrbovsk, steved, williams, wmealing, yozone
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:	2019-07-12 13:08:03 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:	1724638
Bug Blocks:	1724648

Description Dhananjay Arunesh 2019-06-27 13:10:14 UTC

A NULL pointer dereference vulnerability in the function nfc_genl_deactivate_target() in net/nfc/netlink.c in the Linux kernel can be triggered by a malicious user-mode program that omits certain NFC attributes, leading to denial of service.

At this time no Red Hat Products ship this code enabled in a build.

Reference:
https://github.com/torvalds/linux/commit/385097a3675749cbc9e97c085c0e5dfe4269ca51

Comment 1 Dhananjay Arunesh 2019-06-27 13:10:56 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1724638]

Comment 2 Justin M. Forbes 2019-06-27 14:01:31 UTC

This was fixed for Fedora with the 5.1.13 stable updates.

Comment 6 Product Security DevOps Team 2019-07-12 13:08:03 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-12984