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CVE-2019-9512

Published: 13 August 2019

Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

From the Ubuntu security team

It was discovered that Netty incorrectly implements HTTP/2. An attacker could possibly use this issue to cause a denial of service.

Notes

AuthorNote
sbeattie
nginx added http2 support in 1.9.5
nginx previously fixed issue for CVE-2018-16844
netty added http2 support in 4.1.0
nghttp2: nghttpd and nghttp are affected, libnghttp2 is not
twisted added http2 support in 16.3
trafficserver enabled http2 support by default in 7.0
mdeslaur
Packages built using golang need to be rebuilt once the
vulnerability has been fixed. This CVE entry does not
list packages that need rebuilding outside of the main
repository or the Ubuntu variants with PPA overlays.
Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
golang
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

golang-1.10
Launchpad, Ubuntu, Debian
bionic Needed

disco Ignored
(reached end-of-life)
eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Needs triage

upstream Needs triage

xenial Needs triage

golang-1.11
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Ignored
(reached end-of-life)
eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

Patches:
upstream: https://github.com/golang/go/commit/e152b01a468a1c18a290bf9aec52ccea7693c7f2


golang-1.12
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

Patches:

upstream: https://github.com/golang/go/commit/7139b45d1410ded14e1e131151fd8dfc435ede6c

golang-1.6
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Needs triage

golang-1.7
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

golang-1.8
Launchpad, Ubuntu, Debian
bionic Needed

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

golang-1.9
Launchpad, Ubuntu, Debian
bionic Needed

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

h2o
Launchpad, Ubuntu, Debian
bionic Needs triage

disco
Released (2.2.5+dfsg2-2+deb10u1build0.19.04.1)
eoan Not vulnerable
(2.2.5+dfsg2-3)
focal Not vulnerable
(2.2.5+dfsg2-3)
groovy Not vulnerable
(2.2.5+dfsg2-3)
hirsute Not vulnerable
(2.2.5+dfsg2-3)
impish Not vulnerable
(2.2.5+dfsg2-3)
jammy Not vulnerable
(2.2.5+dfsg2-3)
precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

netty
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Ignored
(reached end-of-life)
disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Needed

groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish Ignored
(reached end-of-life)
jammy Needed

precise Does not exist

trusty Not vulnerable
(http2 support not implemented)
upstream Needs triage

xenial Not vulnerable
(http2 support not implemented)
nginx
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(fixed for CVE-2018-16844)
cosmic Not vulnerable
(fixed for CVE-2018-16844)
disco Not vulnerable
(fixed for CVE-2018-16844)
eoan Not vulnerable
(fixed for CVE-2018-16844)
focal Not vulnerable
(fixed for CVE-2018-16844)
groovy Not vulnerable
(fixed for CVE-2018-16844)
hirsute Not vulnerable
(fixed for CVE-2018-16844)
impish Not vulnerable
(fixed for CVE-2018-16844)
jammy Not vulnerable
(fixed for CVE-2018-16844)
precise Does not exist

trusty Not vulnerable
(http2 support not implemented)
upstream Needs triage

xenial Not vulnerable
(fixed for CVE-2018-16844)
trafficserver
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Ignored
(reached end-of-life)
disco Ignored
(reached end-of-life)
eoan Not vulnerable
(8.0.5+ds-1)
focal Not vulnerable
(8.0.5+ds-1)
groovy Not vulnerable
(8.0.5+ds-1)
hirsute Not vulnerable
(8.0.5+ds-1)
impish Not vulnerable
(8.0.5+ds-1)
jammy Not vulnerable
(8.0.5+ds-1)
precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Ignored
(end of standard support, was needs-triage)
twisted
Launchpad, Ubuntu, Debian
bionic
Released (17.9.0-2ubuntu0.1)
cosmic Ignored
(reached end-of-life)
disco Ignored
(reached end-of-life)
eoan
Released (18.9.0-3ubuntu1.1)
focal
Released (18.9.0-6ubuntu1)
groovy
Released (18.9.0-6ubuntu1)
hirsute
Released (18.9.0-6ubuntu1)
impish
Released (18.9.0-6ubuntu1)
jammy
Released (18.9.0-6ubuntu1)
precise Not vulnerable
(http2 support not implemented)
trusty Not vulnerable
(http2 support not implemented)
upstream
Released (19.10.0)
xenial Not vulnerable
(http2 support not implemented)
Patches:


upstream: https://github.com/twisted/twisted/commit/1595d9adc21c580065d1d6036c9611c411990816