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Date: Mon, 2 Feb 2015 18:48:35 +0100
From: Vitezslav Cizek <>
Subject: Re: CVE Request: cpio -- directory traversal


* Dne Friday 16. January 2015, 03:44:25 [CET] Alexander Cherepanov napsal:
> Hi!
> cpio is susceptible to a directory traversal vulnerability via symlinks.

Here's a patch we use in SUSE for some time.
It forbids to write over symlinks, similar to bsdtar.
It also adds a new option "--extract-over-symlinks" to restore the original

I sent it to Sergey Poznyakoff (upstream maintainer) in July,
but there was no response.

Here's a corresponding bug in SUSE bugzilla:

> Initial report:
> Upstream report:
> Some discussion:
> Could CVE(s) please be assigned?
> -- 
> Alexander Cherepanov

Vita Cizek

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