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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== 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 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. 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If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXBcSUWaOgq3Tt24GAQguog/+KUAUho/XoOcpVk+aOcrelIWbRRRF2Ejb V2AvDsxLqT7+T8li8htLii6EngQK07EU5R8o1h6FG7hDukxm8YT4XjAh87UAHA3u nk5aWMCpLdoOPaQ3XgWb1F96qeGdbZDt6xQSAAe9SmTVrfZAPQNeO2gVHrOEQd07 VfTuks3DsYpLE+E+3oCAQ5f8UeEeiuuMKD84ktNJUKa6UJ41klbbs1gR0POLOT4B LFGyTsAMZypetwYFnQHhjC33lAWInOJYkfcpph9MN9/pSn5a9ZQ1o2TpIm4WLhpz +L5o826AE0hF2MNkkBi9MOn7JKTa5/FGXmIfcVICeQnnSt27NsRajfFuHpOK6b2p UsLJgGVHBPdCaqmRajU5givbY5/vUhPwMbKkdhbzdSFxnl88OwLD2u4DDIH4HW6g YJbQwWEXpezxVY4NV+cqDJG2oKaVTJEO0Tlg5e2H0dNkJbgFBdhuCo3hSJMut3DZ KJ3Yu9H98jWpryrhMzL00nt3cJZpaUkABcLkynhMVKoVus3hdTU9jza5CZ8MQrfQ HHTqNFc825g2UpBubzltCEwwQRceA1tqqIBOaza5+gECSgtaWvrHR2jsqZNX6NvF op86hJ4dl5gokEZm1o6DwZ3yhk5FKSLiaWGsiJ67W7Te1llELXNNjmkN/bzpdebr 3ojvQM2i5ms= =Zjpg -----END PGP SIGNATURE-----