[arch-security] [ASA-201511-1] unzip: multiple issues

[Levente Polyak]

Arch Linux Security Advisory ASA-201511-1
=========================================

Severity: High
Date    : 2015-11-03
CVE-ID  : CVE-2015-7696 CVE-2015-7697
Package : unzip
Type    : multiple issues
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package unzip before version 6.0-11 is vulnerable to arbitrary code
execution and denial of service.

Resolution
==========

Upgrade to 6.0-11.

# pacman -Syu "unzip>=6.0-11"

The problems have been fixed by applying proper patches.

Workaround
==========

None.

Description
===========

- CVE-2015-7696 (arbitrary code execution)

A heap buffer overflow triggered by unzipping a file with password that
can lead to arbitrary code execution.

- CVE-2015-7697 (denial of service)

A denial of service with a file that never finishes unzipping.

Impact
======

A remote attacker is able to create a specially crafted zip archive with
a password that is leading to arbitrary code execution or denial of
service via an infinite loop while unzipping.

References
==========

https://access.redhat.com/security/cve/CVE-2015-7696
https://access.redhat.com/security/cve/CVE-2015-7697
http://seclists.org/oss-sec/2015/q3/512
https://bugs.archlinux.org/task/46955

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