CVE-2020-1983

Published: 22 April 2020

A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows crafted packets to cause a denial of service.

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
libslirp
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo)
Released (4.1.0-2ubuntu2)
Ubuntu 20.04 LTS (Focal Fossa)
Released (4.1.0-2ubuntu2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://gitlab.freedesktop.org/slirp/libslirp/-/commit/9bd6c5913271eabcb7768a58197ed3301fe19f2d
qemu
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(uses system libslirp)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(uses system libslirp)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1:2.11+dfsg-1ubuntu7.26)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (1:2.5+dfsg-5ubuntu10.44)
Ubuntu 14.04 ESM (Trusty Tahr) Needs triage

qemu-kvm
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

slirp4netns
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(1.0.1-1)
Ubuntu 20.04 LTS (Focal Fossa) Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist