Bug 1418608 (CVE-2016-10195)

Summary: CVE-2016-10195 libevent: Stack-buffer overflow in the name_parse() function
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: cschalle, gecko-bugs-nobody, jfeeney, jhorak, rdma-dev-team, steved, stransky, tpopela
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
Doc Text:
A vulnerability was found in libevent with the parsing of DNS requests and replies. An attacker could send a forged DNS response to an application using libevent which could lead to reading data out of bounds on the heap, potentially disclosing a small amount of application memory.
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-03-24 04:59:36 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: 1418616    
Bug Blocks: 1418615    

Description Andrej Nemec 2017-02-02 10:30:38 UTC
A vulnerability was found in libevent. The name_parse() function in libevent's DNS code is vulnerable to a buffer overread.

Upstream bug:

https://github.com/libevent/libevent/issues/317

Upstream patch:

https://github.com/libevent/libevent/commit/96f64a022014a208105ead6c8a7066018449d86d

Comment 1 Andrej Nemec 2017-02-02 10:41:04 UTC
Created libevent tracking bugs for this issue:

Affects: fedora-all [bug 1418616]

Comment 6 errata-xmlrpc 2017-05-08 06:46:07 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:1201 https://access.redhat.com/errata/RHSA-2017:1201