Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2481 NSS vulnerability 3 October 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libnss3 Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2017-7805 Reference: ASB-2017.0155 ESB-2017.2466 ESB-2017.2459 Original Bulletin: http://www.ubuntu.com/usn/usn-3431-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3431-1 October 02, 2017 nss vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 17.04 - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: NSS could be made to crash or run programs if it received specially crafted network traffic. Software Description: - - nss: Network Security Service library Details: Martin Thomson discovered that NSS incorrectly generated handshake hashes. A remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: libnss3 2:3.28.4-0ubuntu0.17.04.3 Ubuntu 16.04 LTS: libnss3 2:3.28.4-0ubuntu0.16.04.3 Ubuntu 14.04 LTS: libnss3 2:3.28.4-0ubuntu0.14.04.3 After a standard system update you need to restart any applications that use NSS, such as Evolution and Chromium, to make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3431-1 CVE-2017-7805 Package Information: https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.17.04.3 https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.3 https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.14.04.3 - --------------------------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 iQIVAwUBWdMhEox+lLeg9Ub1AQgJXQ/+OfwfHgVPpNgOpDqUnIwbiBf0ZB8SblvR A8uoC+1+D4v91NbF0rskgdey8D0X5X7H/Rq3Npt2CvD/SkBbZSKunhG7GyuUOdVV 3/imXohrRvLJZEZdWdmKw4cXWzpgiwkQ3s1BgWJgDAuXuASD67QlKg3NhHG4Ef13 W204+u7Oztk3ZlgD7A2GsTkokDB9Kz2NzYih5lKIGYfcnFJjmk4fsnQzdt+j5Bfi 8Crr8tEMCQuiwZY/7H2b/yzsaKTcALE7zv0UjqneWan+V+dz2ixX4geuYsJ8Mjsq 5M7e+NnB2Nzbf5HlazvIQXNQlCb54YihIUgTH9uHkYn0O9zLPCe1qW/UoBXrIjpN Y5oonDrJWR32ORehN7Koa8DlAzVnFWM+ROylb20ykiAFrEXZtc+MHjAL7bVHgDjm D2ToyswMfkNcgSaNpLbJ2SzJ9aqYL09lxPPuE1TIV6DC/+Vr87z1eTER2ISJ+tg/ K0rwnv3LASiIk4M7KlakYhPFu9VKxVAa+ur7Z+k+/GSZIRHFOoVNB5MDlNl3J1Ak a0jOTjzopN43uhlv8xnvC/AbrOW3OMXCfcU4eTiua46ilZm8Pk5ymvyXJCa7G8uq kh+eTJn1kSxFRWb4ZfSBRh6YgWzFoAr0Wbrpijbx6RqjcW7XYf7Cf4EVABpUtARx 45sUWjRBSNM= =VYIY -----END PGP SIGNATURE-----