Bug 1867455

Summary:	kernel: heap-based buffer overflow in the ldm_frag_add function
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, bmasney, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, masami256, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, ptalbert, qzhao, 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. A heap-based buffer overflow allows local users to gain privileges or obtain sensitive information via a crafted LDM partition table. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-08-12 15:43:47 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:	1867456
Bug Blocks:	1867457

Description Dhananjay Arunesh 2020-08-10 03:47:15 UTC

Heap-based buffer overflow in the ldm_frag_add function in fs/partitions/ldm.c in the Linux kernel allows local users to gain privileges or obtain sensitive information via a crafted LDM partition table.

References:
http://openwall.com/lists/oss-security/2011/02/23/16
http://openwall.com/lists/oss-security/2011/02/24/14
http://openwall.com/lists/oss-security/2011/02/24/4
http://www.pre-cert.de/advisories/PRE-SA-2011-01.txt

Comment 1 Dhananjay Arunesh 2020-08-10 03:48:27 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1867456]

Comment 2 Justin M. Forbes 2020-08-10 18:29:07 UTC

The patch for this was upstream in 2011 and has never impacted any currently supported Fedora release.