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CVE-2017-7656

Published: 26 June 2018

In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), HTTP/0.9 is handled poorly. An HTTP/1 style request line (i.e. method space URI space version) that declares a version of HTTP/0.9 was accepted and treated as a 0.9 request. If deployed behind an intermediary that also accepted and passed through the 0.9 version (but did not act on it), then the response sent could be interpreted by the intermediary as HTTP/1 headers. This could be used to poison the cache if the server allowed the origin client to generate arbitrary content in the response.

Notes

AuthorNote
ebarretto
jetty8 ignored (very hard to exploit, complex patch)

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
jetty8
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic 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

kinetic Does not exist

lunar Does not exist

mantic Does not exist

noble Does not exist

trusty Ignored

upstream
Released (9.2.25-1)
xenial Ignored

jetty9
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Needed

cosmic Not vulnerable
(9.2.26-1)
disco Not vulnerable
(9.2.26-1)
eoan Not vulnerable
(9.2.26-1)
focal Not vulnerable
(9.2.26-1)
groovy Not vulnerable
(9.2.26-1)
hirsute Not vulnerable
(9.2.26-1)
impish Not vulnerable
(9.2.26-1)
jammy Not vulnerable
(9.2.26-1)
kinetic Not vulnerable
(9.2.26-1)
lunar Not vulnerable
(9.2.26-1)
mantic Not vulnerable
(9.2.26-1)
noble Not vulnerable
(9.2.26-1)
trusty Does not exist

upstream
Released (9.2.25-1)
xenial Needed

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 High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N