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CVE-2021-2341

Published: 21 July 2021

Vulnerability in the Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versions that are affected are Java SE: 7u301, 8u291, 11.0.11, 16.0.1; Oracle GraalVM Enterprise Edition: 20.3.2 and 21.1.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 3.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N).

From the Ubuntu security team

Varnavas Papaioannou discovered that the FTP client implementation in OpenJDK accepted alternate server IP addresses when connecting with FTP passive mode. An attacker controlling an FTP server that an application connects to could possibly use this to expose sensitive information (rudimentary port scans).

Priority

Medium

CVSS 3 base score: 3.1

Status

Package Release Status
icedtea-web
Launchpad, Ubuntu, Debian
bionic Not vulnerable

focal Not vulnerable

groovy Ignored
(reached end-of-life)
hirsute Not vulnerable

impish Not vulnerable

jammy Not vulnerable

trusty Does not exist

upstream Not vulnerable

xenial Not vulnerable

openjdk-12
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

openjdk-13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Needs triage

groovy Ignored
(reached end-of-life)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

openjdk-15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

openjdk-8
Launchpad, Ubuntu, Debian
bionic
Released (8u312-b07-0ubuntu1~18.04)
focal
Released (8u312-b07-0ubuntu1~20.04)
groovy Ignored
(reached end-of-life)
hirsute
Released (8u312-b07-0ubuntu1~21.04)
impish Not vulnerable
(8u302-b08-0ubuntu2)
jammy Not vulnerable
(8u302-b08-0ubuntu2)
trusty Does not exist

upstream Needs triage

xenial
Released (8u312-b07-0ubuntu1~16.04)
Patches:
upstream: http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/2464c9fe4c11

openjdk-9
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Ignored
(end of standard support, was needs-triage)
openjdk-lts
Launchpad, Ubuntu, Debian
bionic
Released (11.0.13+8-0ubuntu1~18.04)
focal
Released (11.0.13+8-0ubuntu1~20.04)
groovy Ignored
(reached end-of-life)
hirsute
Released (11.0.13+8-0ubuntu1~21.04)
impish
Released (11.0.12+7-0ubuntu1)
jammy
Released (11.0.12+7-0ubuntu1)
trusty Does not exist

upstream
Released (11.0.12+7)
xenial Does not exist

Patches:

upstream: http://hg.openjdk.java.net/jdk-updates/jdk11u/rev/ca23657dc7da

Notes

AuthorNote
sbeattie
the fix for this issue changes the FTP client
behavior in OpenJDK. See the Oracle release notes on the new
jdk.net.ftp.trustPasvAddress system property that can be set if
this breaks PASV commands from an application using the FTP client
implementation in OpenJDK.

References