Bug 1359134 (CVE-2016-6261)

Summary: CVE-2016-6261 libidn: Out of bounds stack read in idna_to_ascii_4i
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: dkholia, erik-fedora, fweimer, mlichvar, puntogil, rjones, sardella, slawomir
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: libidn 1.33 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-07-28 10:05:28 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: 1359146, 1359147, 1359148, 1452750    
Bug Blocks: 1359151    

Description Adam Mariš 2016-07-22 11:39:12 UTC 
An out-of-bounds stack read was found in idna_to_ascii_4i.

Upstream patches:

http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d

test: http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=9a1a7e15d0706634971364493fbb06e77e74726c
changelog: http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=d4c533a5d975bf49090d3cd40acd230b8f79dd32
fix for introduced memory leak: http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=11abd0e02c16f9e0b6944aea4ef0f2df44b42dd4

CVE assignment:

http://seclists.org/oss-sec/2016/q3/124
Comment 1 Adam Mariš 2016-07-22 12:05:23 UTC 
Created libidn tracking bugs for this issue:

Affects: fedora-all [bug 1359146]
Comment 2 Adam Mariš 2016-07-22 12:05:29 UTC 
Created mingw-libidn tracking bugs for this issue:

Affects: fedora-all [bug 1359147]
Affects: epel-7 [bug 1359148]
Comment 3 Fedora Update System 2016-07-24 20:18:31 UTC 
libidn-1.33-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2016-08-08 23:56:28 UTC 
libidn-1.33-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.