An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.
https://www.zerodayinitiative.com/advisories/ZDI-20-1005/
https://www.debian.org/security/2020/dsa-4728
https://usn.ubuntu.com/4467-1/
https://usn.ubuntu.com/4437-1/
https://security.netapp.com/advisory/ntap-20201001-0001/
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
https://bugzilla.redhat.com/show_bug.cgi?id=1835986
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00040.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00035.html