Operating System:

[Debian]

Published:

17 December 2018

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.3411.3
                    DLA 1562-1: poppler security update
                             17 December 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           poppler
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-16646 CVE-2018-13988 CVE-2018-10768
                   CVE-2017-18267  

Reference:         ESB-2018.3386
                   ESB-2018.2564
                   ESB-2018.1496

Original Bulletin: 
   https://security-tracker.debian.org/tracker/DLA-1562-1
   https://security-tracker.debian.org/tracker/DLA-1562-2
   https://security-tracker.debian.org/tracker/DLA-1562-3

Comment: This bulletin contains three (3) Debian security advisories.

Revision History:  December 17 2018: Added DLA 1562-3 for regression issue
                   December  3 2018: DLA 1562-2 published
                   November  1 2018: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

Package        : poppler
Version        : 0.26.5-2+deb8u5
CVE ID         : CVE-2017-18267 CVE-2018-10768 CVE-2018-13988 CVE-2018-16646
Debian Bug     : 898357 909802


Various security issues were discovered in the poppler PDF rendering
shared library.

CVE-2017-18267

    The FoFiType1C::cvtGlyph function in fofi/FoFiType1C.cc in Poppler
    through 0.64.0 allows remote attackers to cause a denial of service
    (infinite recursion) via a crafted PDF file, as demonstrated by
    pdftops.

    The applied fix in FoFiType1C::cvtGlyph prevents infinite recursion
    on such malformed documents.

CVE-2018-10768

    A NULL pointer dereference in the AnnotPath::getCoordsLength function
    in Annot.h in Poppler 0.24.5 had been discovered. A crafted input
    will lead to a remote denial of service attack. Later versions of
    Poppler such as 0.41.0 are not affected.

    The applied patch fixes the crash on AnnotInk::draw for malformed
    documents.

CVE-2018-13988

    Poppler through 0.62 contains an out of bounds read vulnerability due
    to an incorrect memory access that is not mapped in its memory space,
    as demonstrated by pdfunite. This can result in memory corruption and
    denial of service. This may be exploitable when a victim opens a
    specially crafted PDF file.

    The applied patch fixes crashes when Object has negative number.
    (Specs say, number has to be > 0 and gen >= 0).

    For Poppler in Debian jessie, the original upstream patch has been
    backported to Poppler's old Object API.


CVE-2018-16646

    In Poppler 0.68.0, the Parser::getObj() function in Parser.cc may
    cause infinite recursion via a crafted file. A remote attacker can
    leverage this for a DoS attack.

    A range of upstream patches has been applied to Poppler's XRef.cc in
    Debian jessie to consolidate a fix for this issue.


For Debian 8 "Jessie", these problems have been fixed in version
0.26.5-2+deb8u5.

We recommend that you upgrade your poppler packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

mike gabriel aka sunweaver (Debian Developer)
fon: +49 (1520) 1976 148

GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22  0782 9AF4 6B30 2577 1B31
mail: sunweaver@debian.org, http://sunweavers.net

- --------------------------------------------------------------------------------

Package        : poppler
Version        : 0.26.5-2+deb8u6
CVE ID         : CVE-2018-16646


A regression issue has been resolved in the poppler PDF rendering
shared library introduced with version 0.26.5-2+deb8u5.


CVE-2018-16646

    In Poppler 0.68.0, the Parser::getObj() function in Parser.cc may
    cause infinite recursion via a crafted file. A remote attacker can
    leverage this for a DoS attack.

    The previous solution in Debian LTS fixed the above issue in XRef.cc,
    the patches had been obtained from a merge request (#67) on upstream's
    Git development platform. Unfortunately, this merge request was declined
    by upstream and another merge request (#91) got applied instead. The
    fix now directly occurs in the Parser.cc file.

    This version of poppler now ships the changeset that got favorized by
    the poppler upstream developers (MR #91) and drops the patches from
    MR #67.

For Debian 8 "Jessie", this problem has been fixed in version
0.26.5-2+deb8u6.

We recommend that you upgrade your poppler packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

- -- 

mike gabriel aka sunweaver (Debian Developer)
fon: +49 (1520) 1976 148

GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22  0782 9AF4 6B30 2577 1B31
mail: sunweaver@debian.org, http://sunweavers.net

- --------------------------------------------------------------------------------

Package        : poppler
Version        : 0.26.5-2+deb8u7
CVE ID         : CVE-2018-16646
Debian Bug     :


A second regression issue has been resolved in the poppler PDF rendering
shared library this time introduced with version 0.26.5-2+deb8u6 (see
DLA 1562-2).


CVE-2018-16646

    In Poppler 0.68.0, the Parser::getObj() function in Parser.cc may
    cause infinite recursion via a crafted file. A remote attacker can
    leverage this for a DoS attack.

    The poppler upstream developers added two more regression fixes on top
    of the original fix (upstream merge request #91). These two patches
    have now been added to the poppler package in Debian jessie LTS.


For Debian 8 "Jessie", this problem has been fixed in version
0.26.5-2+deb8u7.

We recommend that you upgrade your poppler packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

- --

mike gabriel aka sunweaver (Debian Developer)
fon: +49 (1520) 1976 148

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