12 December 2017
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.3169 OpenSSL vulnerabilities 12 December 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openssl Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-3738 CVE-2017-3737 Reference: ESB-2017.3144 Original Bulletin: http://www.ubuntu.com/usn/usn-3512-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3512-1 December 11, 2017 openssl vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 17.10 - - Ubuntu 17.04 - - Ubuntu 16.04 LTS Summary: Several security issues were fixed in OpenSSL. Software Description: - - openssl: Secure Socket Layer (SSL) cryptographic library and tools Details: David Benjamin discovered that OpenSSL did not correctly prevent buggy applications that ignore handshake errors from subsequently calling certain functions. (CVE-2017-3737) It was discovered that OpenSSL incorrectly performed the x86_64 Montgomery multiplication procedure. While unlikely, a remote attacker could possibly use this issue to recover private keys. (CVE-2017-3738) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.10: libssl1.0.0 1.0.2g-1ubuntu13.3 Ubuntu 17.04: libssl1.0.0 1.0.2g-1ubuntu11.4 Ubuntu 16.04 LTS: libssl1.0.0 1.0.2g-1ubuntu4.10 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3512-1 CVE-2017-3737, CVE-2017-3738 Package Information: https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu13.3 https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu11.4 https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.10 - --------------------------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 email@example.com 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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWi8c/Ix+lLeg9Ub1AQjjgA/+O1eKrqHJwYVJ5y+H9eFDaFm0Veidwv3e vKYL//DLwyMeg4MNJ73LEkf8YQ4WKSohHWbb2i/hNCN5pftFKSNEoJRi228ueP/t 51Jo+BBoiOKZzeUDMxcX9aUrWvMhsnMfMI9bKN2M55BTtuTVTNp4nSxqBBymYAzf XPRkzprI08MJ1+9kLfyV7njG82wByLlJgR2VfZU1YsuH26ndEOw4+MzKMl98eReV JJ9wQob11BP2qJIsuJWnz+SPo67jInOGqVFB0Fw96o7FP5944gGLOY8aUJ+nNL3P 483uU6dtLKjaXzLZYhvT5eS09knmrgoTJBP6br0QLwUOu16bpaBjrKJRNBGL0ymf WoNAIePuiEmoqUez0r2qjDtteSbThiihqxPlK7eTdEQ6kT9Xa1DRWNenFZdr52av 0XvTkuxEdpcm7np0O/I2M7KHwJ/9ZdAk5L7bnAZEyAs4xQiTq8JoROf1EymTNfOC NF/+5L7ZVSdCFsgv9kRCv3sXTrfNPiQ67Y/34jYQALo1nM2Y/peYdU2ES4yQ90sg kkV36oOHt08tNXO0v9/XUGgE7x+04vWEwbLsKV0jWnTnXl2di316q7VpzUiHihXQ YmEOUIasVTJnXGa6V4oZyqm0K4Uy07aUu4QL4ZZuByZ6/FyRKHnZm3zc3CMTfT30 s2ESxTWNwWM= =TtFN -----END PGP SIGNATURE-----