CVE-2019-9513
Published: 13 August 2019
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU.
Notes
Author | Note |
---|---|
sbeattie | nginx added http2 support in 1.9.5 nghttp2: nghttpd and nghttp are affected, libnghttp2 is not |
mdeslaur | nghttp2-server is in universe |
Priority
Status
Package | Release | Status |
---|---|---|
nghttp2 Launchpad, Ubuntu, Debian |
bionic |
Needed
|
cosmic |
Ignored
(reached end-of-life)
|
|
disco |
Ignored
(reached end-of-life)
|
|
eoan |
Not vulnerable
(1.39.2-1)
|
|
focal |
Not vulnerable
(1.39.2-1)
|
|
groovy |
Not vulnerable
(1.39.2-1)
|
|
hirsute |
Not vulnerable
(1.39.2-1)
|
|
impish |
Not vulnerable
(1.39.2-1)
|
|
jammy |
Not vulnerable
(1.39.2-1)
|
|
kinetic |
Not vulnerable
(1.39.2-1)
|
|
lunar |
Not vulnerable
(1.39.2-1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(1.39.2)
|
|
xenial |
Needed
|
|
Binaries built from this source package are in Universe and so are supported by the community. | ||
nginx Launchpad, Ubuntu, Debian |
bionic |
Released
(1.14.0-0ubuntu1.4)
|
cosmic |
Ignored
(reached end-of-life)
|
|
disco |
Released
(1.15.9-0ubuntu1.1)
|
|
eoan |
Released
(1.16.1-0ubuntu1)
|
|
focal |
Released
(1.16.1-0ubuntu1)
|
|
groovy |
Released
(1.16.1-0ubuntu1)
|
|
hirsute |
Released
(1.16.1-0ubuntu1)
|
|
impish |
Released
(1.16.1-0ubuntu1)
|
|
jammy |
Released
(1.16.1-0ubuntu1)
|
|
kinetic |
Released
(1.16.1-0ubuntu1)
|
|
lunar |
Released
(1.16.1-0ubuntu1)
|
|
trusty |
Not vulnerable
(http2 support not implemented)
|
|
upstream |
Needs triage
|
|
xenial |
Released
(1.10.3-0ubuntu0.16.04.4)
|
|
Patches: upstream: https://github.com/nginx/nginx/commit/39bb3b9d4a33bd03c8ae0134dedc8a7700ae7b2b |
||
nodejs Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
focal |
Needs triage
|
|
groovy |
Ignored
(reached end-of-life)
|
|
hirsute |
Ignored
(reached end-of-life)
|
|
impish |
Ignored
(reached end-of-life)
|
|
jammy |
Needs triage
|
|
kinetic |
Needs triage
|
|
lunar |
Needs triage
|
|
trusty |
Needs triage
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |