Bug 1546029 (CVE-2018-7186)

Summary:	CVE-2018-7186 leptonica: Stack-based buffer overflows in gplotRead() and ptaReadStream() when parsing crafted files can lead to denial of service
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jkucera, manisandro, psampaio, rhel8-maint
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	leptonica 1.75.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-21 19:54:56 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:	1542006, 1542007, 1542008, 1542009
Bug Blocks:

Description Sam Fowler 2018-02-16 06:12:51 UTC

leptonica through version 1.74.4 is vulnerable to a stack-based buffer overflow in gplot.c:gplotRead() and ptabasic.c:ptaReadStream() when parsing crafted files, leading to a denial of service.

Upstream patch:

https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99a

Additional References:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=890548

Comment 1 Sam Fowler 2018-02-16 06:14:45 UTC

Created leptonica tracking bugs for this issue:

Affects: epel-all [bug 1542007]
Affects: fedora-all [bug 1542008]


Created mingw-leptonica tracking bugs for this issue:

Affects: fedora-all [bug 1542009]