Bug 1475754 (CVE-2017-11683)

Summary: CVE-2017-11683 exiv2: Reachable assertion in the Internal::TiffReader::visitDirectory function
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: alan.pater, jgrulich, mcepl, michel, rdieter, v.owl337
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-07-27 09:26:11 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: 1475124, 1475370    
Bug Blocks:    
Description Flags
Triggered by "./exiv2 $POC" none

Description Andrej Nemec 2017-07-27 09:24:45 UTC
There is a reachable assertion in the Internal::TiffReader::visitDirectory function in tiffvisitor.cpp of Exiv2 0.26 that will lead to a denial of service attack via crafted input.

Product bug:


Comment 1 Andrej Nemec 2017-07-27 09:25:29 UTC
Created exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 1475370]

Comment 2 owl337 2017-07-27 13:50:36 UTC
Created attachment 1305393 [details]
Triggered by  "./exiv2 $POC"