Bug 1610469 (CVE-2018-5807)

Summary:	CVE-2018-5807 LibRaw: out-of-bounds read in samsung_load_raw in internal/dcraw_common.cpp
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:	dchen, debarshir, gwync, hobbes1069, manisandro, siddharth.kde, siddhesh
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	LibRaw 0.18.9	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-08-08 13:48:37 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:	1610470, 1610471, 1610472, 1610473
Bug Blocks:	1610488

Description Laura Pardo 2018-07-31 17:15:03 UTC

A flaw was found in LibRaw versions before 0.18.9. An error within the samsung_load_raw() function (internal/dcraw_common.cpp) can be exploited to cause an out-of-bounds read memory access and subsequently cause a crash.


References:
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-10/

Comment 1 Laura Pardo 2018-07-31 17:15:53 UTC

Created LibRaw tracking bugs for this issue:

Affects: epel-6 [bug 1610472]
Affects: fedora-all [bug 1610470]


Created mingw-LibRaw tracking bugs for this issue:

Affects: fedora-all [bug 1610471]

Comment 3 Riccardo Schirone 2018-08-08 08:46:06 UTC

Upstream patch:
https://github.com/LibRaw/LibRaw/commit/c9d8143eba4ff397163665e2119c6c5d7db54c55

Comment 4 Riccardo Schirone 2018-08-08 13:48:37 UTC

In RHEL 7, the code in dcraw_common.cpp, generated from dcraw.cpp, does not contain the `samsung_load_raw` function and it does not support the TIFF tag 40976, related to Samsung.

Comment 5 Riccardo Schirone 2018-08-08 13:48:45 UTC

Statement:

This issue did not affect the versions of LibRaw as shipped with Red Hat Enterprise Linux 7 as they did not include the vulnerable code.