Bug 1535173 (CVE-2017-13215)

Summary:	CVE-2017-13215 kernel: crypto: privilege escalation in skcipher_recvmsg function
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	aquini, bhu, blc, bpowers, dhoward, fhrbata, hkrzesin, hwkernel-mgr, iboverma, jkacur, jross, kernel-mgr, lgoncalv, matt, mcressma, mlangsdo, mmilgram, nmurray, plougher, ppandit, rt-maint, rvrbovsk, skozina, slawomir, vdronov, williams, wmealing
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	A flaw was found in the Linux kernel's skcipher component, which affects the skcipher_recvmsg function. Attackers using a specific input can lead to a privilege escalation.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:37:23 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:	1541870, 1541871, 1541872, 1541873, 1541874, 1541875, 1695821, 1725181
Bug Blocks:	1535176

Description Laura Pardo 2018-01-16 18:52:27 UTC

A flaw was found in the upstream kernel Skcipher component. This vulnerability affects the skcipher_recvmsg function of the component Skcipher. The manipulation with an unknown input leads to a privilege escalation vulnerability

References:
https://source.android.com/security/bulletin/2018-01-01

Patch:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?h=v3.18.78&id=36c84b22ac8aa041cbdfbe48a55ebb32e3521704
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f0414e54e4d1893c6f08260693f8ef84c929293

Comment 6 Eric Christensen 2018-02-05 15:45:14 UTC

Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6, and kernel-alt packages.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7, MRG-2 and real-time kernels.

Future Linux kernel updates for the respective releases may address this issue.

Comment 7 errata-xmlrpc 2018-08-14 18:44:01 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2384 https://access.redhat.com/errata/RHSA-2018:2384

Comment 8 errata-xmlrpc 2018-08-14 20:23:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2395 https://access.redhat.com/errata/RHSA-2018:2395

Comment 11 errata-xmlrpc 2019-05-14 19:08:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.4 Extended Update Support

Via RHSA-2019:1170 https://access.redhat.com/errata/RHSA-2019:1170

Comment 12 errata-xmlrpc 2019-05-14 20:26:45 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise MRG 2

Via RHSA-2019:1190 https://access.redhat.com/errata/RHSA-2019:1190