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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2021 cups security update 12 July 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: cups Publisher: Debian Operating System: Debian GNU/Linux 9 UNIX variants (UNIX, Linux, OSX) Impact/Access: Root Compromise -- Existing Account Execute Arbitrary Code/Commands -- Remote with User Interaction Access Privileged Data -- Existing Account Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-6553 CVE-2018-4183 CVE-2018-4182 CVE-2018-4181 CVE-2018-4180 CVE-2017-15400 Original Bulletin: http://www.debian.org/security/2018/dsa-4243 Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running cups check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-4243-1 security@debian.org https://www.debian.org/security/ Luciano Bello July 11, 2018 https://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : cups CVE ID : CVE-2017-15400 CVE-2018-4180 CVE-2018-4181 CVE-2018-4182 CVE-2018-4183 CVE-2018-6553 Several vulnerabilities were discovered in CUPS, the Common UNIX Printing System. These issues have been identified with the following CVE ids: CVE-2017-15400 Rory McNamara discovered that an attacker is able to execute arbitrary commands (with the privilege of the CUPS daemon) by setting a malicious IPP server with a crafted PPD file. CVE-2018-4180 Dan Bastone of Gotham Digital Science discovered that a local attacker with access to cupsctl could escalate privileges by setting an environment variable. CVE-2018-4181 Eric Rafaloff and John Dunlap of Gotham Digital Science discovered that a local attacker can perform limited reads of arbitrary files as root by manipulating cupsd.conf. CVE-2018-4182 Dan Bastone of Gotham Digital Science discovered that an attacker with sandboxed root access can execute backends without a sandbox profile by provoking an error in CUPS' profile creation. CVE-2018-4183 Dan Bastone and Eric Rafaloff of Gotham Digital Science discovered that an attacker with sandboxed root access can execute arbitrary commands as unsandboxed root by modifying /etc/cups/cups-files.conf CVE-2018-6553 Dan Bastone of Gotham Digital Science discovered that an attacker can bypass the AppArmor cupsd sandbox by invoking the dnssd backend using an alternate name that has been hard linked to dnssd. For the stable distribution (stretch), these problems have been fixed in version 2.2.1-8+deb9u2. We recommend that you upgrade your cups packages. For the detailed security status of cups please refer to its security tracker page at: https://security-tracker.debian.org/tracker/cups Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEayzFlnvRveqeWJspbsLe9o/+N3QFAltGE+0ACgkQbsLe9o/+ N3RzTBAAog31K8+nfhrds2NQZeWaz0rGevs6hHj5wuf40FemG0IoHYfl7xba66Fx gVTZSDbpOuFnG1YQet0UpfsXsogTuaPv6/qP89YASEM8ncLSgBUTKS1bK7VM6SyP NZCWUmjmfsyf0yv7tvnWnq0k5I6MwHRRX6l0fI+treXz0nwjXDIPnKH1Xbv4zW1Y TTpmxD4FknyzkXJGxJoBwMcclPGCkT6W1IrBPQrjscUJvFBWiNW3umAoiuv+aCCr sM+raoK0SJTLFJ289AhrXajKilt0SfTHly12mpxUKnyevPCAz5o+nbtQMhQrALLQ foRuTAfI3WhubZFd7bTUjhrVo1nhS4khnmriyRxsCL7o19dc5rfQd1fO1IvCDQCb YtnWhDD7Tfzspetpr5kUk/pbB1U//uyWDFji73ZURFPbn5Pa+Z80OUGIRd9IIlNg ODJsNq5X/bjwoJgwJwi3W6SieyNWKBaTR5Ktk2iqBOJQ++KqV3BmsCVI/B/5NFnV /heBZYugaknsmdQVbdKa9jv3GIr4TE4frqJJrAsZ0KGnlKNNzoe3pQIk6nA0f/4d z3JalPDGwfL+Qq2AAJlqx2346ro0bViHUAGXJc1zsx44LHBVaRotV+a0gTXsh3z/ 3tQIHs2KZ4KRzczK7pbDDbeSEsaL6XsWb0vXbG2ZNAHoGxV7jQo= =g0fa - -----END PGP SIGNATURE----- - --------------------------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. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. 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). 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