Bug 1102571 (CVE-2014-3917)

Summary:	CVE-2014-3917 kernel: DoS with syscall auditing
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	agordeev, aquini, bhu, chazlett, davej, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jkurik, jonathan, jross, jrusnack, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lnie, lwang, madhu.chinakonda, matt, mchehab, mcressma, nobody, npajkovs, pablo.iranzo, pholasek, plougher, ppandit, rt-maint, rvrbovsk, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	An out-of-bounds memory access flaw was found in the Linux kernel's system call auditing implementation. On a system with existing audit rules defined, a local, unprivileged user could use this flaw to leak kernel memory to user space or, potentially, crash the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-09-22 19:44:08 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:	1102702, 1102703, 1102704, 1102705, 1102708, 1102710, 1102712, 1102715, 1135000
Bug Blocks:	1102519

Description Vasyl Kaigorodov 2014-05-29 08:51:58 UTC

Linux kernel built with the system-call auditing support(CONFIG_AUDITSYSCALL) is vulnerable to a kernel crash or information disclosure flaw caused by out of bounds memory access. It could occur when system call audit rules are configured on a system. Administrative privileges are required to add such audit rules.

When system call audit rules are present on a system, an unprivileged user/program could use this flaw to leak kernel memory bytes or crash the system resulting DoS.

Upstream fix:
-------------
  -> http://article.gmane.org/gmane.linux.kernel/1713179

References:
-----------
  -> http://seclists.org/oss-sec/2014/q2/377

Comment 1 Prasad Pandit 2014-05-29 12:34:06 UTC

Statement:

(none)

Comment 4 Prasad Pandit 2014-05-29 12:42:51 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1102715]

Comment 6 Fedora Update System 2014-06-05 21:52:04 UTC

kernel-3.14.5-200.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2014-06-16 23:30:11 UTC

kernel-3.14.7-100.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 John Kacur 2014-06-23 23:02:20 UTC

commit a3c54931199565930d6d84f4c3456f6440aefd41 upstream

Comment 9 errata-xmlrpc 2014-07-22 18:04:16 UTC

This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2014:0913 https://rhn.redhat.com/errata/RHSA-2014-0913.html

Comment 10 Martin Prpič 2014-09-02 09:36:57 UTC

IssueDescription:

An out-of-bounds memory access flaw was found in the Linux kernel's system call auditing implementation. On a system with existing audit rules defined, a local, unprivileged user could use this flaw to leak kernel memory to user space or, potentially, crash the system.

Comment 11 errata-xmlrpc 2014-09-03 17:53:49 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2014:1143 https://rhn.redhat.com/errata/RHSA-2014-1143.html

Comment 12 errata-xmlrpc 2014-09-09 17:56:44 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:1167 https://rhn.redhat.com/errata/RHSA-2014-1167.html

Comment 13 errata-xmlrpc 2014-09-22 18:23:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2014:1281 https://rhn.redhat.com/errata/RHSA-2014-1281.html