Bug 1707400 (CVE-2018-20509)

Summary:	CVE-2018-20509 kernel: print_binder_ref_olocked function in drivers/android/binder.c leads to information disclosure
Product:	[Other] Security Response	Reporter:	msiddiqu
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	acaringi, bhu, blc, brdeoliv, dhoward, dvlasenk, esammons, fhrbata, hkrzesin, iboverma, jkacur, jross, jstancek, kernel-mgr, lgoncalv, matt, mcressma, mlangsdo, nmurray, plougher, rvrbovsk, 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:	2019-05-28 10:54:42 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:
Bug Blocks:	1707402

Description msiddiqu 2019-05-07 12:49:33 UTC

The print_binder_ref_olocked function in drivers/android/binder.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading " ref *desc *node" lines in a debugfs file.

References:

https://github.com/Yellow-Pay/CVE/blob/master/CVE-2018-20509.md 
https://www.mail-archive.com/debian-security-tracker@lists.debian.org/msg03902.html

Comment 2 Petr Matousek 2019-05-28 10:54:46 UTC

Statement:

Not vulnerable.

The issue is in Android only functionality.