apt: Overwrite arbitrary files - Existing account

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.1790
                            apt security update
                              9 October 2014

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

Product:           apt
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Overwrite Arbitrary Files -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-7206  

Original Bulletin: 
   http://www.debian.org/security/2014/dsa-3048

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running apt check for an updated version of the software for their 
         operating system.

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Debian Security Advisory DSA-3048-1                   security@debian.org
http://www.debian.org/security/                           Thijs Kinkhorst
October 08, 2014                       http://www.debian.org/security/faq
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Package        : apt
CVE ID         : CVE-2014-7206
Debian Bug     : 763780

Guillem Jover discovered that the changelog retrieval functionality in
apt-get used temporary files in an insecure way, allowing a local user
to cause arbitrary files to be overwritten.

This vulnerability is neutralized by the fs.protected_symlinks setting in
the Linux kernel, which is enabled by default in Debian 7 Wheezy and up.

For the stable distribution (wheezy), this problem has been fixed in
version 0.9.7.9+deb7u6.

For the unstable distribution (sid), this problem has been fixed in
version 1.0.9.2.

We recommend that you upgrade your apt packages.

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: debian-security-announce@lists.debian.org
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