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CVE-2017-12621

Published: 28 September 2017

During Jelly (xml) file parsing with Apache Xerces, if a custom doctype entity is declared with a "SYSTEM" entity with a URL and that entity is used in the body of the Jelly file, during parser instantiation the parser will attempt to connect to said URL. This could lead to XML External Entity (XXE) attacks in Apache Commons Jelly before 1.0.1.

Notes

AuthorNote
msalvatore
Eventhough the version of jenkins-commons-jelly in trusty and
xenial is 1.1, the fix is still needed.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
jenkins-commons-jelly
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

mantic Does not exist

noble Does not exist

trusty Does not exist
(trusty was needed)
upstream
Released (1.0.1)
xenial Needed

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H