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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2334 Libgcrypt vulnerability 15 September 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libgcrypt20 Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Privileged Data -- Console/Physical Resolution: Patch/Upgrade CVE Names: CVE-2017-0379 Reference: ESB-2017.2155 Original Bulletin: http://www.ubuntu.com/usn/usn-3417-1 - --------------------------BEGIN INCLUDED TEXT-------------------- Ubuntu Security Notice USN-3417-1 September 14, 2017 libgcrypt20 vulnerability A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 17.04 Summary: Libgcrypt could be made to expose sensitive information. Software Description: - - libgcrypt20: LGPL Crypto library Details: Daniel Genkin, Luke Valenta, and Yuval Yarom discovered that Libgcrypt was susceptible to an attack via side channels. A local attacker could use this attack to recover Curve25519 private keys. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: libgcrypt20 1.7.6-1ubuntu0.2 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3417-1 CVE-2017-0379 Package Information: https://launchpad.net/ubuntu/+source/libgcrypt20/1.7.6-1ubuntu0.2 - --------------------------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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBWbslPIx+lLeg9Ub1AQirIQ//clj6kb5Tk2FzECf0hFB9hcxV5V7RXxI5 GgIYtf4iHEtgaLnB0tM8WdYhRHlwAjtHgktDFTaexHCD1q9qQvKVVP97xg6i3tZ4 fF73QIuj4dWCA3XZlSS4A36YmRgOVVAwY6xLXxsz992tTyrtaUzxuaj+HrXotSRN ZLn9OYkt1AIvM5LMGC+QVU7LQLKhDwvgGjEbkp90t7ZW+RzaES9SONM7DhCCWO9C n6zKGhMCNNemktMEVUsV3UAWvwjM4R4sl2xSDjr82U2yPZyMHi20fwVOWvqIWiWu nnGkmHL5B7ebluDbeDYz2fC6gJN0wjLROzJ+2H+OBm1qGIZM6xQWgcd/yvPWqQRP y7eQyuqvJ4aboLLUlfJaBbjNwLT4Ez6rgNwon8zQ3WVGtZ0XosMTv23f8hysnW9p tjJZ6MUVWazHFAK3Nq3I3RsfJXQCERmv20yIjRjOerQ7YFtR/2mdgnnyd1K6a46C LbHOmyls2zxk8jZFNm5wbakV70u9bICKpSPqm5/L1SnnscfA4/NLgoqf6xWZ/U55 UTcsbw9FdeRc2rNIRj6wWCjQZsMYTW6y+fkUuEgzSTUEg0k7hYBK9MGw7lGbTciF /ct9B1/wKDSZBRRC766hFXGhlgOzEsZx3ggrfoT/up6p5kLGer/CAob/W5uWCbrB mCrBgx0mUPA= =YjyB -----END PGP SIGNATURE-----