Rapid7 Vulnerability & Exploit Database

Red Hat OpenShift: CVE-2020-7039: QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Red Hat OpenShift: CVE-2020-7039: QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
01/16/2020
Created
12/30/2020
Added
12/29/2020
Modified
05/10/2023

Description

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.

Solution(s)

  • linuxrpm-upgrade-slirp4netns

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;