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debianDebianDEBIAN:DSA-4811-1:BEA23
HistoryDec 15, 2020 - 12:12 p.m.

[SECURITY] [DSA 4811-1] libxstream-java security update

2020-12-1512:12:12
lists.debian.org
6

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.974 High

EPSS

Percentile

99.9%


Debian Security Advisory DSA-4811-1 [email protected]
https://www.debian.org/security/ Moritz Muehlenhoff
December 15, 2020 https://www.debian.org/security/faq


Package : libxstream-java
CVE ID : CVE-2020-26217

It was discovered that the default blacklist of XStream, a Java library
to serialise objects to XML and back again, was vulnerable to the
execution of arbitrary shell commands by manipulating the processed
input stream.

For additional defense-in-depth it is recommended to switch to the
whitelist approach of XStream's security framework. For additional
information please refer to
https://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2

For the stable distribution (buster), this problem has been fixed in
version 1.4.11.1-1+deb10u1.

We recommend that you upgrade your libxstream-java packages.

For the detailed security status of libxstream-java please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libxstream-java

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.974 High

EPSS

Percentile

99.9%