Bug 1735624 (CVE-2011-5327)

Summary:	CVE-2011-5327 kernel: memory corruption in sunction tcm_loop_make_naa_tpg() in drivers/target/loopback/tcm_loop.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:	high	Docs Contact:
Priority:	high
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, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, 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:	A flaw was found in the Linux kernel’s implementation of SCSI loopback emulation, where an off by one in the drivers/target/loopback/tcm_loop.c tcm_loop_make_naa_tpg() function could result in memory corruption. A local attacker could abuse this flaw by corrupting memory on a system where this configuration is present.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-08-07 02:44:37 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:	1735625
Bug Blocks:	1735626

Description Dhananjay Arunesh 2019-08-01 07:35:45 UTC

A vulnerability was found in Linux Kernel, an off by one in the drivers/target/loopback/tcm_loop.c tcm_loop_make_naa_tpg() function could result in at least memory corruption.

Reference:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=12f09ccb4612734a53e47ed5302e0479c10a50f8
https://github.com/torvalds/linux/commit/12f09ccb4612734a53e47ed5302e0479c10a50f8
https://mirrors.edge.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

Comment 1 Dhananjay Arunesh 2019-08-01 07:36:26 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1735625]

Comment 2 Justin M. Forbes 2019-08-01 12:31:58 UTC

This was fixed for Fedora in 2011.

Comment 4 Wade Mealing 2019-08-07 02:17:27 UTC

No shipping versions of Red Hat Enterprise Linux contain this flaw.

Comment 5 Wade Mealing 2019-08-07 02:18:10 UTC

This flaw is rated as important, it is basic memory corruption that may lead to additional paths of privilege escalation.