Bug 1159437 – VUL-1: CVE-2019-19814: kernel-source: mounting a crafted f2fs filesystem image can cause __remove_dirty_segment slab-out-of-bounds write access

Bug 1159437 - (CVE-2019-19814) VUL-1: CVE-2019-19814: kernel-source: mounting a crafted f2fs filesystem image can cause __remove_dirty_segment slab-out-of-bounds write access

(CVE-2019-19814)
Summary:	VUL-1: CVE-2019-19814: kernel-source: mounting a crafted f2fs filesystem imag...

Status:	RESOLVED INVALID

Classification:	Novell Products
Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents
Version:	unspecified
Hardware:	Other Other

Priority:	P5 - None Severity: Normal
Target Milestone:	---
Assigned To:	Security Team bot
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/249201/
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Reported:	2019-12-18 09:06 UTC by Alexandros Toptsoglou
Modified:	2019-12-18 12:19 UTC (History)
CC List:	2 users (show)

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Found By:	Security Response Team
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Description Alexandros Toptsoglou 2019-12-18 09:06:45 UTC

CVE-2019-19814

In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can cause
__remove_dirty_segment slab-out-of-bounds write access because an array is
bounded by the number of dirty types (8) but the array index can exceed this.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-19814
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19814
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19814

Comment 1 Takashi Iwai 2019-12-18 11:09:56 UTC

f2fs is disabled on both all SUSE and openSUSE releases, so we're unaffected.

Reassigned back to security team.

Comment 2 Alexandros Toptsoglou 2019-12-18 12:19:49 UTC

comment 1