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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.2749
             [SECURITY] [DLA 1863-1] linux-4.9 security update
                               24 July 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           linux kernel
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-13272  

Reference:         ESB-2019.2739
                   ESB-2019.2704

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2019/07/msg00023.html

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Package        : linux-4.9
Version        : 4.9.168-1+deb9u4~deb8u1
CVE ID         : CVE-2019-13272

Jann Horn discovered that the ptrace subsystem in the Linux kernel
mishandles the management of the credentials of a process that wants
to create a ptrace relationship, allowing a local user to obtain root
privileges under certain scenarios.

For Debian 8 "Jessie", this problem has been fixed in version
4.9.168-1+deb9u4~deb8u1.

We recommend that you upgrade your linux-4.9 packages.

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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===========================================================================
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The University of Queensland
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