Bug 1661604 (CVE-2018-5819)

Summary:	CVE-2018-5819 LibRaw: DoS in parse_sinar_ia function 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 ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	debarshir
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	LibRaw 0.19.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-27 03:21:23 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:	1543597, 1654688, 1661605, 1661606, 1661607, 1663163, 1663164
Bug Blocks:	1661524

Description Laura Pardo 2018-12-21 17:55:20 UTC

LibRaw is vulnerable to a denial of service, caused by a flaw in the parse_sinar_ia function in internal/dcraw_common.cpp. By persuading a victim to open a specially-crafted file, a remote attacker could exploit this vulnerability to cause a denial of service condition.


References:
https://www.flexera.com/company/secunia-research/advisories/SR-2018-27.html

Comment 1 Laura Pardo 2018-12-21 17:55:40 UTC

Created LibRaw tracking bugs for this issue:

Affects: epel-6 [bug 1661607]
Affects: fedora-28 [bug 1661605]


Created mingw-LibRaw tracking bugs for this issue:

Affects: fedora-all [bug 1661606]

Comment 2 Riccardo Schirone 2019-01-03 10:26:19 UTC

Upstream patch:
https://github.com/LibRaw/LibRaw/commit/e67a9862d10ebaa97712f532eca1eb5e2e410a22

Comment 3 Riccardo Schirone 2019-01-03 10:31:32 UTC

Function parse_sinar_ia() execute a loop for X times, where X is read from the file and is not properly checked. By providing a very large number (or a negative one) it is possible to execute the loop many time and waste resources.

Comment 7 Debarshi Ray 2019-02-01 13:54:15 UTC

Fixed in LibRaw-0.19.1

Comment 8 Riccardo Schirone 2020-04-21 11:11:19 UTC

CVE-2018-5819 has been resolved in Red Hat Enterprise Linux 7 as part of advisory https://access.redhat.com/errata/RHBA-2019:2044 .