* Requesting advice on ImageMagick popen() filename vulnerability (CVE-2016-5118)
@ 2016-05-31 17:02 Leo Famulari
2016-05-31 17:40 ` Leo Famulari
2016-05-31 21:12 ` Ludovic Courtès
0 siblings, 2 replies; 3+ messages in thread
From: Leo Famulari @ 2016-05-31 17:02 UTC (permalink / raw)
To: guix-devel
CVE-2016-5118 is a bug in GraphicsMagick and ImageMagick whereby
one can get shell execution by passing the libraries a file whose name
begins with the pipe character, |.
http://seclists.org/oss-sec/2016/q2/433
We (crudely) fixed this for GraphicsMagick in d8862778c1b.
Now I see that ImageMagick has suggested a similar interim fix on their
forums:
https://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=29803#p134039
Also, they have begun committing mitigations to their Git repository:
http://git.imagemagick.org/repos/ImageMagick/commit/ca430ff77794980941ff0fa0d2fc463b50c2c6b7
I plan to fix this in our package using the "crude" option until
ImageMagick releases a new version, which seems to be happening every
few days.
Please let me know if you object to this solution.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Requesting advice on ImageMagick popen() filename vulnerability (CVE-2016-5118)
2016-05-31 17:02 Requesting advice on ImageMagick popen() filename vulnerability (CVE-2016-5118) Leo Famulari
@ 2016-05-31 17:40 ` Leo Famulari
2016-05-31 21:12 ` Ludovic Courtès
1 sibling, 0 replies; 3+ messages in thread
From: Leo Famulari @ 2016-05-31 17:40 UTC (permalink / raw)
To: guix-devel
On Tue, May 31, 2016 at 01:02:05PM -0400, Leo Famulari wrote:
> CVE-2016-5118 is a bug in GraphicsMagick and ImageMagick whereby
> one can get shell execution by passing the libraries a file whose name
> begins with the pipe character, |.
>
> http://seclists.org/oss-sec/2016/q2/433
>
> We (crudely) fixed this for GraphicsMagick in d8862778c1b.
>
> Now I see that ImageMagick has suggested a similar interim fix on their
> forums:
> https://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=29803#p134039
>
> Also, they have begun committing mitigations to their Git repository:
> http://git.imagemagick.org/repos/ImageMagick/commit/ca430ff77794980941ff0fa0d2fc463b50c2c6b7
>
> I plan to fix this in our package using the "crude" option until
> ImageMagick releases a new version, which seems to be happening every
> few days.
Done, as e88eb07110a.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Requesting advice on ImageMagick popen() filename vulnerability (CVE-2016-5118)
2016-05-31 17:02 Requesting advice on ImageMagick popen() filename vulnerability (CVE-2016-5118) Leo Famulari
2016-05-31 17:40 ` Leo Famulari
@ 2016-05-31 21:12 ` Ludovic Courtès
1 sibling, 0 replies; 3+ messages in thread
From: Ludovic Courtès @ 2016-05-31 21:12 UTC (permalink / raw)
To: Leo Famulari; +Cc: guix-devel
Leo Famulari <leo@famulari.name> skribis:
> I plan to fix this in our package using the "crude" option until
> ImageMagick releases a new version, which seems to be happening every
> few days.
It sounds reasonable. Thank you!
Ludo’.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-05-31 17:02 Requesting advice on ImageMagick popen() filename vulnerability (CVE-2016-5118) Leo Famulari
2016-05-31 17:40 ` Leo Famulari
2016-05-31 21:12 ` Ludovic Courtès
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