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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: craigbarnes85, ruby-maint
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: If docs needed, set a value
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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:
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]