Debian-LTS alert DLA-666-1 (guile-2.0)

From:
    	     
 
Markus Koschany <apo@debian.org> 
To:
    	     
 
debian-lts-announce@lists.debian.org 
Subject:
    	     
 
[SECURITY] [DLA 666-1] guile-2.0 security update 
Date:
    	     
 
Wed, 19 Oct 2016 00:18:18 +0200
Message-ID:
    	     
 
<cef5af42-2a88-cb2a-8803-73833061c649@debian.org>
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Package        : guile-2.0
Version        : 2.0.5+1-3+deb7u1
CVE ID         : CVE-2016-8605 CVE-2016-8606
Debian Bug     : 840555 840556


Several vulnerabilities were discovered in GNU Guile, an
implementation of the Scheme programming language. The Common
Vulnerabilities and Exposures project identifies the following issues.

CVE-2016-8605:
    The mkdir procedure of GNU Guile temporarily changed the process'
    umask to zero. During that time window, in a multithreaded
    application, other threads could end up creating files with
    insecure permissions.

CVE-2016-8606:
    GNU Guile provides a "REPL server" which is a command prompt that
    developers can connect to for live coding and debugging purposes.
    The REPL server is started by the '--listen' command-line option
    or equivalent API.

    It was reported that the REPL server is vulnerable to the HTTP
    inter-protocol attack.

    This constitutes a remote code execution vulnerability for
    developers running a REPL server that listens on a loopback device
    or private network. Applications that do not run a REPL server, as
    is usually the case, are unaffected.


For Debian 7 "Wheezy", these problems have been fixed in version
2.0.5+1-3+deb7u1.

We recommend that you upgrade your guile-2.0 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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