Bug 1597810 (CVE-2018-13099)

Summary:	CVE-2018-13099 kernel: out-of-bounds memory access in fs/f2fs/inline.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abhgupta, airlied, aquini, bhu, bskeggs, dbaker, dhoward, esammons, ewk, fhrbata, hdegoede, hkrzesin, hwkernel-mgr, iboverma, ichavero, itamar, jarodwilson, jforbes, jglisse, jkacur, john.j5live, jokerman, jonathan, josef, jross, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, lwang, matt, mchehab, mcressma, mguzik, mjg59, nmurray, plougher, rvrbovsk, skozina, slawomir, steved, sthangav, trankin, vdronov, 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:	An issue was discovered in the F2FS filesystem code in fs/f2fs/inline.c in the Linux kernel. A denial of service due to the out-of-bounds memory access can occur for a modified f2fs filesystem image.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-07-10 14:19:29 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:	1597811, 1597812
Bug Blocks:	1597813

Description Laura Pardo 2018-07-03 16:25:02 UTC

An issue was discovered in the F2FS filesystem code in fs/f2fs/inline.c in the Linux kernel. A denial of service due to the out-of-bounds memory access can occur for a modified f2fs filesystem image.

References:

https://bugzilla.kernel.org/show_bug.cgi?id=200179

https://sourceforge.net/p/linux-f2fs/mailman/message/36356878/

A suggested upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=cc60e90f9bfab8d6a7fb826937e824333c3bf94a

Comment 1 Laura Pardo 2018-07-03 16:26:31 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1597812]

Comment 6 Vladis Dronov 2018-07-10 14:19:29 UTC

Note:

An F2FS filesystem is not shipped with any of the Red Hat products.