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List:       oss-security
Subject:    [oss-security] CVE-2018-19665 Qemu: bt: integer overflow in Bluetooth routines allows memory corrupt
From:       P J P <ppandit () redhat ! com>
Date:       2018-11-29 9:27:05
Message-ID: nycvar.YSQ.7.76.1811291443100.21164 () xnncv
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   Hello,

An integer overflow resulting in memory corruption issue was found in various 
Bluetooth functions. It could occur in routines wherein 'len' parameter is a 
'signed int' which subsequently converts to an unsigned integer resulting in 
memcpy() copying large amounts of memory.

A user inside guest could use this flaw to crash the Qemu process resulting in 
DoS.

Upstream patch:
---------------
   -> https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg03570.html

This issue was reported by Arash TC

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