It was discovered that ruby-zip, a Ruby module for reading and writing zip files, is prone to a directory traversal vulnerability. An attacker can take advantage of this flaw to overwrite arbitrary files during archive extraction via a .. (dot dot) in an extracted filename.

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Debian Security Advisory DSA-3801-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                     Salvatore Bonaccorso
March 04, 2017                        https://www.debian.org/security/faq
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Package        : ruby-zip
CVE ID         : CVE-2017-5946
Debian Bug     : 856269

It was discovered that ruby-zip, a Ruby module for reading and writing
zip files, is prone to a directory traversal vulnerability. An attacker
can take advantage of this flaw to overwrite arbitrary files during
archive extraction via a .. (dot dot) in an extracted filename.

For the stable distribution (jessie), this problem has been fixed in
version 1.1.6-1+deb8u1.

For the upcoming stable distribution (stretch), this problem has been
fixed in version 1.2.0-1.1.

For the unstable distribution (sid), this problem has been fixed in
version 1.2.0-1.1.

We recommend that you upgrade your ruby-zip 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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