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Bug 1427833 - (CVE-2017-6414) CVE-2017-6414 Qemu: libcacard: host memory leakage while creating new APDU
CVE-2017-6414 Qemu: libcacard: host memory leakage while creating new APDU
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20170221,reported=2...
: Security
Depends On: 1427834 1476037 1476049 1476068 1476069 1476072 1476074 1476077
Blocks: 1425098 1476084
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Reported: 2017-03-01 06:05 EST by Prasad J Pandit
Modified: 2018-07-18 11:16 EDT (History)
33 users (show)

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2408 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security and bug fix update 2017-08-01 21:17:55 EDT

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Description Prasad J Pandit 2017-03-01 06:05:34 EST 
The CAC(Common Access Card) library, used by Quick Emulator(Qemu) to implement
smartcard support, is vulnerable to a host memory leakage issue. It could occur
while allocating a new APDU object using guest supplied raw byte stream in
'vcard_apdu_new'.

A guest user/process could use this flaw to leak host memory resulting in DoS.

Upstream patch:
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  -> https://cgit.freedesktop.org/spice/libcacard/commit/?id=9113dc6a303604a2d9812ac70c17d076ef11886c

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/03/01/11
Comment 1 Prasad J Pandit 2017-03-01 06:05:39 EST 
Acknowledgments:

Name: Li Qiang (360.cn Inc.)
Comment 2 Prasad J Pandit 2017-03-01 06:06:37 EST 
Created libcacard tracking bugs for this issue:

Affects: fedora-all [bug 1427834]
Comment 3 Garth Mollett 2017-07-27 18:16:07 EDT 
Created libcacard tracking bugs for this issue:

Affects: fedora-all [bug 1476037]
Comment 5 errata-xmlrpc 2017-08-01 21:00:10 EDT 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)
  Red Hat OpenStack Platform 11.0 (Ocata)
  Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
  Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
  Red Hat OpenStack Platform 8.0 (Liberty)
  Red Hat OpenStack Platform 9.0 (Mitaka)

Via RHSA-2017:2408 https://access.redhat.com/errata/RHSA-2017:2408
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