CVE-2020-15250

2020-10-1200:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

1.9 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

28.1%

JSON

In JUnit4 from version 4.7 and before 4.13.1, the test rule TemporaryFolder
contains a local information disclosure vulnerability. On Unix like
systems, the system’s temporary directory is shared between all users on
that system. Because of this, when files and directories are written into
this directory they are, by default, readable by other users on that same
system. This vulnerability does not allow other users to overwrite the
contents of these directories or files. This is purely an information
disclosure vulnerability. This vulnerability impacts you if the JUnit tests
write sensitive information, like API keys or passwords, into the temporary
folder, and the JUnit tests execute in an environment where the OS has
other untrusted users. Because certain JDK file system APIs were only added
in JDK 1.7, this this fix is dependent upon the version of the JDK you are
using. For Java 1.7 and higher users: this vulnerability is fixed in
4.13.1. For Java 1.6 and lower users: no patch is available, you must use
the workaround below. If you are unable to patch, or are stuck running on
Java 1.6, specifying the java.io.tmpdir system environment variable to a
directory that is exclusively owned by the executing user will fix this
vulnerability. For more information, including an example of vulnerable
code, see the referenced GitHub Security Advisory.

Bugs

<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972231>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchjunit4< 4.12-8~18.04.1UNKNOWN
ubuntu20.04noarchjunit4< 4.12-8ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchjunit4< 4.12-8ubuntu0.20.10.1UNKNOWN
ubuntu14.04noarchjunit4< anyUNKNOWN
ubuntu16.04noarchjunit4< 4.12-4ubuntu1.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	junit4	< 4.12-8~18.04.1	UNKNOWN
ubuntu	20.04	noarch	junit4	< 4.12-8ubuntu0.20.04.1	UNKNOWN
ubuntu	20.10	noarch	junit4	< 4.12-8ubuntu0.20.10.1	UNKNOWN
ubuntu	14.04	noarch	junit4	< any	UNKNOWN
ubuntu	16.04	noarch	junit4	< 4.12-4ubuntu1.1	UNKNOWN