[arch-security] [ASA-201702-14] diffoscope: arbitrary file overwrite

[Levente Polyak]

Arch Linux Security Advisory ASA-201702-14
==========================================

Severity: Medium
Date    : 2017-02-17
CVE-ID  : CVE-2017-0359
Package : diffoscope
Type    : arbitrary file overwrite
Remote  : No
Link    : https://security.archlinux.org/AVG-175

Summary
=======

The package diffoscope before version 77-1 is vulnerable to arbitrary
file overwrite.

Resolution
==========

Upgrade to 77-1.

# pacman -Syu "diffoscope>=77-1"

The problem has been fixed upstream in version 77.

Workaround
==========

None.

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

It has been discovered that diffoscope may write to arbitrary locations
on disk depending on the contents of an untrusted archive.

Impact
======

An attacker is able to create a specially crafted archive that, when
processed, overwrites arbitrary files on disc.

References
==========

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854723
https://anonscm.debian.org/git/reproducible/diffoscope.git/commit/?id=632a40828a54b399787c25e7fa243f732aef7e05
https://security.archlinux.org/CVE-2017-0359

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