Bug 1661608 (CVE-2018-5818)

Summary:	CVE-2018-5818 LibRaw: DoS in parse_rollei 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 03:21:28 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, 1661609, 1661610, 1661611, 1663169, 1663170
Bug Blocks:	1661524

Description Laura Pardo 2018-12-21 17:58:41 UTC

LibRaw is vulnerable to a denial of service, caused by a flaw in the parse_rollei 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 the application to enter into an infinite loop.


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

Comment 1 Laura Pardo 2018-12-21 17:59:03 UTC

Created LibRaw tracking bugs for this issue:

Affects: epel-6 [bug 1661611]
Affects: fedora-28 [bug 1661609]


Created mingw-LibRaw tracking bugs for this issue:

Affects: fedora-all [bug 1661610]

Comment 2 Riccardo Schirone 2019-01-03 10:26:38 UTC

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

Comment 4 Riccardo Schirone 2019-01-03 11:01:46 UTC

Function parse_rollei() does not check the return value of the fgets() function and it assumes a "DSC-Image" file always have the terminator tag "EOHD". When the file terminates before finding the "EOHD" tag, parse_rollei() keeps trying to read bytes from the file and it fails, but given no check is performed, it keeps looping forever.

Comment 6 Debarshi Ray 2019-02-01 13:59:46 UTC

Fixed in LibRaw-0.19.1