Bug 1884107 (CVE-2020-26682)

Summary: CVE-2020-26682 libass: in`ass_outline_construct`'s call to `outline_stroke` a signed integer overflow could result in undefined behaviour
Product: [Other] Security Response Reporter: Michael Kaplan <mkaplan>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: martin.sourada
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2020-10-01 08:21:10 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: 1884109, 1884108    
Bug Blocks:    

Description Michael Kaplan 2020-10-01 04:57:38 UTC
In `ass_outline_construct`'s call to `outline_stroke` a signed integer
overflow happens leading to undefined behaviour.

Comment 1 Michael Kaplan 2020-10-01 04:57:41 UTC
External References:


Comment 2 Michael Kaplan 2020-10-01 04:57:57 UTC
Created libass tracking bugs for this issue:

Affects: epel-all [bug 1884109]
Affects: fedora-all [bug 1884108]

Comment 3 Product Security DevOps Team 2020-10-01 08:21:10 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.