Bug 1609406 (CVE-2018-14374)

Summary:	CVE-2018-14374 libtiff: NULL dereference in unixErrorHandler in tif_unix.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:	erik-fedora, mike, nforro, phracek, tgl
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-08-09 08:36:52 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:	1609407, 1609408, 1609409, 1609410
Bug Blocks:	1609415

Description Laura Pardo 2018-07-27 21:58:39 UTC

An issue was discovered in LibTIFF 4.0.9. A buffer overflow can occur via an empty fmt argument to unixErrorHandler in tif_unix.c, and it can be exploited (at a minimum) via the following high-level library API functions: TIFFClientOpen, TIFFFdOpen, TIFFRawStripSize, TIFFCheckTile, TIFFComputeStrip, TIFFReadRawTile, TIFFUnRegisterCODEC, and TIFFWriteEncodedTile.


References:
http://bugzilla.maptools.org/show_bug.cgi?id=2802

Comment 1 Laura Pardo 2018-07-27 21:59:24 UTC

Created libtiff tracking bugs for this issue:

Affects: fedora-all [bug 1609408]


Created mingw-libtiff tracking bugs for this issue:

Affects: epel-7 [bug 1609409]
Affects: fedora-all [bug 1609407]

Comment 3 Riccardo Schirone 2018-08-09 08:36:52 UTC

CVE rejected.

Comment 4 Doran Moppert 2020-02-11 00:30:50 UTC

Statement:

Red Hat Product Security determined that this flaw was not a security vulnerability. See the Bugzilla link for more details.