Bug 1592866 (CVE-2018-12495)

Summary:	CVE-2018-12495 discount: heap-based buffer over-read via a crafted file
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	craigbarnes85, ruby-maint
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:	2019-06-10 10:29:36 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:	1592867, 1592868, 1592869
Bug Blocks:

Description Laura Pardo 2018-06-19 13:37:46 UTC

The quoteblock function in markdown.c in libmarkdown.a in DISCOUNT 2.2.3a allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted file.


References:
https://github.com/Orc/discount/issues/189#issuecomment-397541501

Comment 1 Laura Pardo 2018-06-19 13:38:09 UTC

Created discount tracking bugs for this issue:

Affects: epel-7 [bug 1592869]
Affects: fedora-all [bug 1592867]