libslirp 4.0.0, as used in QEMU 4.1.0, has a use-after-free in ip_reass in ip_input.c.
http://www.openwall.com/lists/oss-security/2019/09/06/3
https://gitlab.freedesktop.org/slirp/libslirp/commit/c5927943
https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
Source: MITRE
Published: 2019-09-06
Updated: 2019-09-20
Type: CWE-416
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH