oss-security - CVE-2020-16092 QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx

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Date: Mon, 10 Aug 2020 10:25:43 +0200
From: Mauro Matteo Cascella <mcascell@...hat.com>
To: oss-security@...ts.openwall.com
Cc: Alexander Bulekov <alxndr@...edu>, ziming zhang <ezrakiez@...il.com>
Subject: CVE-2020-16092 QEMU: reachable assertion failure in
 net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c

Hello,

An assertion failure issue was found in QEMU in the network packet
processing component. This issue affects the "e1000e" and "vmxnet3"
network devices. This flaw allows a malicious guest user or process to
abort the QEMU process on the host, resulting in a denial of service
condition.

Upstream patch:
  -> https://git.qemu.org/?p=qemu.git;a=commit;h=035e69b063835a5fd23cacabd63690a3d84532a8

This flaw was independently reported by Alexander Bulekov and Ziming
Zhang (both CC'd).
CVE-2020-16092 requested and assigned via MITRE form: https://cveform.mitre.org/

Regards,

-- 
Mauro Matteo Cascella, Red Hat Product Security
6F78 E20B 5935 928C F0A8  1A9D 4E55 23B8 BB34 10B0

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