Jiri Horner discovered a way to cause xdg-open, a tool that automatically opens URLs in a user's preferred application, to execute arbitrary commands remotely.

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Debian Security Advisory DSA-3165-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.debian.org/security/                           Michael Gilbert
February 21, 2015                      http://www.debian.org/security/faq
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Package        : xdg-utils
CVE ID         : CVE-2015-1877
Debian Bug     : 777722

Jiri Horner discovered a way to cause xdg-open, a tool that automatically
opens URLs in a user's preferred application, to execute arbitrary
commands remotely.

This problem only affects /bin/sh implementations that don't sanitize
local variables.  Dash, which is the default /bin/sh in Debian is
affected.  Bash as /bin/sh is known to be unaffected.

For the stable distribution (wheezy), this problem has been fixed in
version 1.1.0~rc1+git20111210-6+deb7u3.

For the upcoming stable (jessie) and unstable (sid) distributions,
this problem will be fixed soon.

We recommend that you upgrade your xdg-utils 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/

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