oss-security - CVE request -- libguestfs: virt-edit doesn't preserve file permissions

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Message-ID: <20120611162118.GL28152@dhcp-25-225.brq.redhat.com>
Date: Mon, 11 Jun 2012 18:21:19 +0200
From: Petr Matousek <pmatouse@...hat.com>
To: oss-security@...ts.openwall.com
Subject: CVE request -- libguestfs: virt-edit doesn't preserve file
 permissions

Description of the problem:
virt-edit creates a new file when it is used and thus does not
preserve file permissions, file owner and SELinux context on the
files that it was editing.

As a consequence, if certain security-sensitive files in the guest
were edited using virt-edit, they would become world-readable.

Proposed upstream patch:
https://www.redhat.com/archives/libguestfs/2012-February/msg00034.html

References:
https://www.redhat.com/archives/libguestfs/2012-February/msg00033.html
https://bugzilla.redhat.com/show_bug.cgi?id=788642

Thanks,
-- 
Petr Matousek / Red Hat Security Response Team

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