poppler: CVE-2017-9083

Debian Bug report logs - #863016
poppler: CVE-2017-9083

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: poppler: CVE-2017-9083

Date: Sat, 20 May 2017 10:30:17 +0200

Source: poppler
Version: 0.26.5-2
Severity: important
Tags: upstream security
Forwarded: https://bugs.freedesktop.org/show_bug.cgi?id=101084

Hi,

the following vulnerability was published for poppler.

CVE-2017-9083[0]:
| poppler 0.54.0, as used in Evince and other products, has a NULL
| pointer dereference in the JPXStream::readUByte function in
| JPXStream.cc. For example, the perf_test utility will crash
| (segmentation fault) when parsing an invalid PDF file.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-9083
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9083
[1] https://bugs.freedesktop.org/show_bug.cgi?id=101084

Regards,
Salvatore

Message #10 received at 863016@bugs.debian.org (full text, mbox, reply):

From: Jason Crain <jason@inspiresomeone.us>

To: Salvatore Bonaccorso <carnil@debian.org>, 863016@bugs.debian.org

Subject: Re: Bug#863016: poppler: CVE-2017-9083

Date: Sat, 20 May 2017 07:39:02 -0500

On Sat, May 20, 2017 at 10:30:17AM +0200, Salvatore Bonaccorso wrote:
> the following vulnerability was published for poppler.
> 
> CVE-2017-9083[0]:
> | poppler 0.54.0, as used in Evince and other products, has a NULL
> | pointer dereference in the JPXStream::readUByte function in
> | JPXStream.cc. For example, the perf_test utility will crash
> | (segmentation fault) when parsing an invalid PDF file.

Does this apply to Debian's poppler?  I think uses openjpeg instead of
the internal JPX decoder.

There's a discussion on the poppler mailing list about making it more
explicit that the internal decoders are unmaintained:
https://lists.freedesktop.org/archives/poppler/2017-May/012230.html

Message #15 received at 863016@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Jason Crain <jason@inspiresomeone.us>, 863016@bugs.debian.org

Subject: Re: Bug#863016: poppler: CVE-2017-9083

Date: Sat, 20 May 2017 15:20:41 +0200

Control: severity -1 minor

Hi Jason,

On Sat, May 20, 2017 at 07:39:02AM -0500, Jason Crain wrote:
> On Sat, May 20, 2017 at 10:30:17AM +0200, Salvatore Bonaccorso wrote:
> > the following vulnerability was published for poppler.
> > 
> > CVE-2017-9083[0]:
> > | poppler 0.54.0, as used in Evince and other products, has a NULL
> > | pointer dereference in the JPXStream::readUByte function in
> > | JPXStream.cc. For example, the perf_test utility will crash
> > | (segmentation fault) when parsing an invalid PDF file.
> 
> Does this apply to Debian's poppler?  I think uses openjpeg instead of
> the internal JPX decoder.

I think you are right. While checking, I looked at the source only,
not realizing that it's not relevant for the built binary packages due
to your note.

I changed the severity, and in the security-tracker it is now marked
as 'unimportant', which is the tag used when a source is affected, but
the issue does not affect the built binary packages.

Thanks a lot for checking the bugreport!

Salvatore

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