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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2023 libpng vulnerabilities patched in Ubuntu 12 July 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libpng Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-13785 CVE-2016-10087 Reference: ESB-2017.2180 Original Bulletin: http://www.ubuntu.com/usn/usn-3712-1 http://www.ubuntu.com/usn/usn-3712-2 Comment: This bulletin contains two (2) Ubuntu security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3712-1 July 11, 2018 libpng, libpng1.6 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 18.04 LTS - - Ubuntu 17.10 - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in libpng. Software Description: - - libpng1.6: PNG library - development (version 1.6) - - libpng: PNG (Portable Network Graphics) file library Details: Patrick Keshishian discovered that libpng incorrectly handled certain PNG files. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-10087) Thuan Pham discovered that libpng incorrectly handled certain PNG files. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS. (CVE-2018-13785) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: libpng16-16 1.6.34-1ubuntu0.18.04.1 Ubuntu 17.10: libpng16-16 1.6.34-1ubuntu0.17.10.1 Ubuntu 16.04 LTS: libpng12-0 1.2.54-1ubuntu1.1 Ubuntu 14.04 LTS: libpng12-0 1.2.50-1ubuntu2.14.04.3 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3712-1 CVE-2016-10087, CVE-2018-13785 Package Information: https://launchpad.net/ubuntu/+source/libpng1.6/1.6.34-1ubuntu0.18.04.1 https://launchpad.net/ubuntu/+source/libpng1.6/1.6.34-1ubuntu0.17.10.1 https://launchpad.net/ubuntu/+source/libpng/1.2.54-1ubuntu1.1 https://launchpad.net/ubuntu/+source/libpng/1.2.50-1ubuntu2.14.04.3 - -------------------------------------------------------------------------------- ========================================================================== Ubuntu Security Notice USN-3712-2 July 11, 2018 libpng vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 12.04 ESM Summary: libpng could be made to crash if it received a specially crafted file. Software Description: - - libpng: PNG (Portable Network Graphics) file library Details: USN-3712-1 fixed a vulnerability in libpng. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Patrick Keshishian discovered that libpng incorrectly handled certain PNG files. An attacker could possibly use this to cause a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: libpng12-0 1.2.46-3ubuntu4.3 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3712-2 https://usn.ubuntu.com/usn/usn-3712-1 CVE-2016-10087 - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBW0a3GmaOgq3Tt24GAQgenA/+Ln1D07O7IHDhoPoRFhImF4Yz4x8rzqTy YOGswFR/jfF93sAUgDVsXuAe4j1RevV1tPNXADEXOHXUcGREQk3XOcN+KAfK/mJs tNar12vPV5K8ykiVPhOmwmXor5oEdkSgGQIP/urvVqBYH6VESv+2ChKS7ODPVR2E 2jBA3uXQ5cxX8hOX1DKROvgvz4mDXZY09MR/t1+oeeRfTX4vNYc8cNqak2NVPNw/ 8ZaeCuGwBz8guXxGGIpyqL6msdCdNoybCwm2Q4d0/qN3Ke7edg7lGjzEDBtPDdnM +ZhNkQAigi8xJkysUY9WKQXtlZ1/6K4xieghmVQaiHLcoPbfX3eo4fXus9s26rAB FbWvGTIkLXZV4L/xYwpfAA6Chse3VEZDuwGyWnINR9UyAqPRdYVNj2XXv43h0w36 simOxIdeUbMxFxMloD5QTmZSmGBYTL51yeZFmz1gpAvGkrWXXG/K66kq3rhsezaX oXDNVtqhO2RcA11941ihcw0R+UIIIYIkKGN1h4GC7udbhsVtau8zE3Xlpd8/V8jc eReKunzzXxnjeTVt9hWUNd5sWSGSfjQswnON1soqyvELpfpyN+05nQowqVJizW+F EwIM9ycBoLXp9MAqCfRl/AGb0Eny1e6qCm3//VxX+4ToNfp7ORz0OtZ6RP4TP9S+ As10xGJV2rg= =9ShR -----END PGP SIGNATURE-----