Bug 1763613 (CVE-2015-9383)

Summary: CVE-2015-9383 freetype: a heap-based buffer over-read in tt_cmap14_validate in sfnt/ttcmap.c may lead to a DoS
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: ajax, caillon+fedoraproject, erack, fonts-bugs, gnome-sig, jhorak, john.j5live, kevin, mclasen, mkasik, rhughes, rstrode, sbalasub, stransky
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: freetype 2.6.2 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-25 09:54:20 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: 1763614, 1783427    
Bug Blocks: 1763615    

Description Marian Rehak 2019-10-21 07:57:58 UTC 
A heap-based buffer over-read in tt_cmap14_validate in sfnt/ttcmap.c may lead to a DoS.
Comment 1 Marian Rehak 2019-10-21 07:58:22 UTC 
Upstream Issue:

https://savannah.nongnu.org/bugs/?46346
Comment 2 Marian Rehak 2019-10-21 07:58:35 UTC 
Upstream fix:

http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=57cbb8c148999ba8f14ed53435fc071ac9953afd
Comment 3 Marian Rehak 2019-10-21 07:59:22 UTC 
Created freetype tracking bugs for this issue:

Affects: fedora-all [bug 1763614]
Comment 10 Marco Benatto 2019-12-17 16:19:14 UTC 
There's a issue with fribidi when handling TrueType fonts using CMAP14 tables. A crafted input can trigger an out of bounds read at tt_cmap14_validate() function due to the lack of validation on the number of table mappings leading to denied of service.