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Date: Thu, 16 Jan 2020 14:48:39 +0530 (IST)
From: P J P <>
To: oss security list <>
cc: Vishnu Dev <>
Subject: CVE-2020-7039 QEMU: slirp: OOB buffer access while emulating tcp
 protocols in tcp_emu()


A heap buffer overflow issue(s) were found in the SLiRP networking 
implementation of the QEMU emulator. It occurs in tcp_emu() routine while 
emulating IRC and other protocols.

A user/process could use this flaw to crash the Qemu process on the host 
resulting in DoS or potentially execute arbitrary code with privileges of the 
QEMU process.

Upstream patch(es):

Heap overflow in emulating IRC commands (EMU_IRC) was found and reported by 
Vishnu Dev (CC'd).

'CVE-2020-7039' was assigned via ->

Thank you.
Prasad J Pandit / Red Hat Product Security Team
8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D

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