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[SECURITY] [DLA 2507-1] libxstream-java security update



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Debian LTS Advisory DLA-2507-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
December 31, 2020                             https://wiki.debian.org/LTS
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Package        : libxstream-java
Version        : 1.4.11.1-1+deb9u1
CVE ID         : CVE-2020-26258 CVE-2020-26259
Debian Bug     : 977625 977624

Several security vulnerabilities were discovered in XStream, a Java library to
serialize objects to XML and back again.

CVE-2020-26258

    XStream is vulnerable to a Server-Side Forgery Request which can be
    activated when unmarshalling. The vulnerability may allow a remote attacker
    to request data from internal resources that are not publicly available
    only by manipulating the processed input stream.

CVE-2020-26259

    Xstream is vulnerable to an Arbitrary File Deletion on the local host when
    unmarshalling. The vulnerability may allow a remote attacker to delete
    arbitrary known files on the host as long as the executing process has
    sufficient rights only by manipulating the processed input stream.

For Debian 9 stretch, these problems have been fixed in version
1.4.11.1-1+deb9u1.

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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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