oss-security - CVE-2017-6414 Qemu: libcacard: host memory leakage while creating new APDU

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [day] [month] [year] [list]

Date: Wed, 1 Mar 2017 23:38:14 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss security list <oss-security@...ts.openwall.com>
cc: Li Qiang <liqiang6-s@....cn>
Subject: CVE-2017-6414 Qemu: libcacard: host memory leakage while creating
 new APDU

   Hello,

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

Reference:
----------
   -> https://bugzilla.redhat.com/show_bug.cgi?id=1427833

This issue was reported by Li Qiang of 360.cn Inc.

'CVE-2017-6414' assigned via -> http://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.