Bug 1300646 (CVE-2016-0749)

Summary: CVE-2016-0749 spice: heap-based memory corruption within smartcard handling
Product: [Other] Security Response Reporter: Stefan Cornelius <scorneli>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: alonbl, bmcclain, cfergeau, dblechte, fdeutsch, fziglio, gklein, lsurette, mgoldboi, michal.skrivanek, mkenneth, pstehlik, rbalakri, security-response-team, sherold, srevivo, uril, ycui, ykaul, ylavi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
A memory allocation flaw, leading to a heap-based buffer overflow, was found in spice's smartcard interaction, which runs under the QEMU-KVM context on the host. A user connecting to a guest VM using spice could potentially use this flaw to crash the QEMU-KVM process or execute arbitrary code with the privileges of the host's QEMU-KVM process.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2016-12-09 06:24:36 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1316491, 1316492, 1316493, 1316495, 1343137    
Bug Blocks: 1292834, 1313499    

Description Stefan Cornelius 2016-01-21 10:59:27 UTC 
A memory allocation flaw, leading to a heap-based buffer overflow was found in spice's smartcard interaction, which runs under the QEMU-KVM context on the host. A user connecting to a guest VM via spice could possibly exploit this flaw to crash the QEMU-KVM process, or, possibly, execute arbitrary code with the privileges of the host QEMU-KVM process.

Acknowledgements:

Name: Jing Zhao (Red Hat)
Comment 2 Christophe Fergeau 2016-01-26 14:03:17 UTC 
The RHEL7.3 bug is bug#1287969, the RHEL6 one is bug#1297786. Should they block this bug too?
Comment 5 Stefan Cornelius 2016-06-06 15:18:04 UTC 
Created spice tracking bugs for this issue:

Affects: fedora-all [bug 1343137]
Comment 6 errata-xmlrpc 2016-06-06 15:55:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1205 https://access.redhat.com/errata/RHSA-2016:1205
Comment 7 errata-xmlrpc 2016-06-06 15:55:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:1204 https://access.redhat.com/errata/RHSA-2016:1204