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    Debian LTS: DLA-2471-1: libxstream-java security update

    Date 30 Nov 2020
    405
    Posted By LinuxSecurity Advisories
    It was found that XStream is vulnerable to Remote Code Execution. The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Users who rely on blocklists are affected (the default in Debian). We strongly recommend to use the
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    Debian LTS Advisory DLA-2471-1                This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/lts/security/                      Markus Koschany
    November 30, 2020                             https://wiki.debian.org/LTS
    -------------------------------------------------------------------------
    
    Package        : libxstream-java
    Version        : 1.4.9-2+deb9u1
    CVE ID         : CVE-2020-26217
    
    It was found that XStream is vulnerable to Remote Code Execution. The
    vulnerability may allow a remote attacker to run arbitrary shell commands only
    by manipulating the processed input stream. Users who rely on blocklists
    are affected (the default in Debian). We strongly recommend to use the
    whitelist approach of XStream's Security Framework because there are likely
    more class combinations the blacklist approach may not address.
    
    For Debian 9 stretch, this problem has been fixed in version
    1.4.9-2+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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