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CVE-2019-14378

Published: 29 July 2019

ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflow via a large packet because it mishandles a case involving the first fragment.

From the Ubuntu Security Team

It was discovered that a heap-based buffer overflow existed in the SLiRP networking implementation of QEMU. A local attacker in a guest could use this to cause a denial of service or possibly execute arbitrary code in the host.

Notes

AuthorNote
mdeslaur
located in slirp/src/ip_input.c in qemu

Priority

Low

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
fs-uae
Launchpad, Ubuntu, Debian
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

groovy Ignored
(end of life)
hirsute Ignored
(end of life)
xenial Needs triage

kinetic Ignored
(end of life, was needs-triage)
bionic Needs triage

impish Ignored
(end of life)
jammy Needs triage

trusty Does not exist

upstream Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
libslirp
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Not vulnerable
(4.1.0-2)
trusty Does not exist

upstream Needs triage

xenial Does not exist

impish Not vulnerable
(4.1.0-2)
groovy Not vulnerable
(4.1.0-2)
hirsute Not vulnerable
(4.1.0-2)
kinetic Not vulnerable
(4.1.0-2)
jammy Not vulnerable
(4.1.0-2)
lunar Not vulnerable
(4.1.0-2)
mantic Not vulnerable
(4.1.0-2)
qemu
Launchpad, Ubuntu, Debian
bionic
Released (1:2.11+dfsg-1ubuntu7.20)
disco
Released (1:3.1+dfsg-2ubuntu3.6)
eoan
Released (1:4.0+dfsg-0ubuntu9.1)
impish
Released (1:4.2-1ubuntu1)
groovy
Released (1:4.2-1ubuntu1)
hirsute
Released (1:4.2-1ubuntu1)
kinetic
Released (1:4.2-1ubuntu1)
focal
Released (1:4.2-1ubuntu1)
jammy
Released (1:4.2-1ubuntu1)
lunar
Released (1:4.2-1ubuntu1)
trusty
Released (2.0.0+dfsg-2ubuntu1.47)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (1:4.1-1)
xenial
Released (1:2.5+dfsg-5ubuntu10.42)
mantic
Released (1:4.2-1ubuntu1)
Patches:
upstream: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=c2e03e2aa42d0f4f41deb08c2655503835840afa (stable-4.0)

basilisk2
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
xenial Needs triage

kinetic Ignored
(end of life, was needs-triage)
bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

impish Ignored
(end of life)
jammy Needs triage

trusty Does not exist

upstream Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
bochs
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
xenial Needs triage

kinetic Ignored
(end of life, was needs-triage)
bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

impish Ignored
(end of life)
jammy Needs triage

trusty Does not exist

upstream Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
slirp
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
xenial Needs triage

kinetic Ignored
(end of life, was needs-triage)
bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Needs triage

trusty Needs triage

upstream Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
Patches:

upstream: https://gitlab.freedesktop.org/slirp/libslirp/commit/126c04acbabd7ad32c2b018fe10dfac2a3bc1210
vde2
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
xenial Needs triage

bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Needs triage

trusty Does not exist

upstream Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
xen
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
xenial Not vulnerable

bionic Not vulnerable

focal Not vulnerable

kinetic Not vulnerable

disco Ignored
(end of life)
eoan Ignored
(end of life)
hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Not vulnerable

lunar Not vulnerable

trusty Does not exist

upstream Needs triage

mantic Not vulnerable

Binaries built from this source package are in Universe and so are supported by the community.
android
Launchpad, Ubuntu, Debian
impish Does not exist

groovy Does not exist

hirsute Does not exist

xenial Needs triage

kinetic Does not exist

bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

mantic Does not exist

qemu-kvm
Launchpad, Ubuntu, Debian
impish Does not exist

groovy Does not exist

hirsute Does not exist

kinetic Does not exist

bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

qemu-kvm-spice
Launchpad, Ubuntu, Debian
groovy Does not exist

hirsute Does not exist

kinetic Does not exist

bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

qemu-linaro
Launchpad, Ubuntu, Debian
groovy Does not exist

kinetic Does not exist

bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

slirp4netns
Launchpad, Ubuntu, Debian
groovy Not vulnerable
(0.3.2-1)
kinetic Not vulnerable
(0.3.2-1)
bionic Does not exist

disco Ignored
(end of life)
eoan Not vulnerable
(0.3.2-1)
focal Not vulnerable
(0.3.2-1)
hirsute Not vulnerable
(0.3.2-1)
impish Not vulnerable
(0.3.2-1)
jammy Not vulnerable
(0.3.2-1)
lunar Not vulnerable
(0.3.2-1)
trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Not vulnerable
(0.3.2-1)

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H