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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0042 NSS vulnerabilities 5 January 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libnss3 Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-9074 CVE-2016-8635 CVE-2016-5285 Reference: ASB-2016.0107 ESB-2016.3080 ESB-2016.2942 ESB-2016.2745 ESB-2016.2741 Original Bulletin: http://www.ubuntu.com/usn/usn-3163-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3163-1 January 04, 2017 nss vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 16.10 - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS - - Ubuntu 12.04 LTS Summary: Several security issues were fixed in NSS. Software Description: - - nss: Network Security Service library Details: It was discovered that NSS incorrectly handled certain invalid Diffie-Hellman keys. A remote attacker could possibly use this flaw to cause NSS to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-5285) Hubert Kario discovered that NSS incorrectly handled Diffie Hellman client key exchanges. A remote attacker could possibly use this flaw to perform a small subgroup confinement attack and recover private keys. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-8635) Franziskus Kiefer discovered that NSS incorrectly mitigated certain timing side-channel attacks. A remote attacker could possibly use this flaw to recover private keys. (CVE-2016-9074) This update refreshes the NSS package to version 3.26.2 which includes the latest CA certificate bundle. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.10: libnss3 2:3.26.2-0ubuntu0.16.10.1 Ubuntu 16.04 LTS: libnss3 2:3.26.2-0ubuntu0.16.04.2 Ubuntu 14.04 LTS: libnss3 2:3.26.2-0ubuntu0.14.04.3 Ubuntu 12.04 LTS: libnss3 2:3.26.2-0ubuntu0.12.04.1 This update uses a new upstream release, which includes additional bug fixes. 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: http://www.ubuntu.com/usn/usn-3163-1 CVE-2016-5285, CVE-2016-8635, CVE-2016-9074 Package Information: https://launchpad.net/ubuntu/+source/nss/2:3.26.2-0ubuntu0.16.10.1 https://launchpad.net/ubuntu/+source/nss/2:3.26.2-0ubuntu0.16.04.2 https://launchpad.net/ubuntu/+source/nss/2:3.26.2-0ubuntu0.14.04.3 https://launchpad.net/ubuntu/+source/nss/2:3.26.2-0ubuntu0.12.04.1 - --------------------------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. 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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 iQIVAwUBWG2aNYx+lLeg9Ub1AQg5uRAAic2xTuUQrV+pLFrt+b9fq814w/JXLME7 VBUVDrDkb1er8dsubEvuQfGKxmUTJCCmNb0R5Ce3b/yV4Gzut//hmJ+39JbktOgT unlx3P/bh6SxGDSApoY6PVz5YVeydcPehwEl4xrRJU1nuGAz+W2vGJaOMrp/eg4n nSY4js7Wu+Jg4/dYU4ScZPyqrQRpETPP//Y1d7DkCk5ucjGkc6iI7EiRLeYP7gf6 yZJovrBJBtIwaOvMIDJ9RCUtU8SgwQJNm8tKmiOJGhkikaQ/qKgMIXZ0O2ET+0wn zKEZXR+UWNnHuYkAEE9kTTm0A0tMZzSdxpv62K4wL34AvHD9t7HLEfkEZfdN1vk3 IynYXml1+zjRBacjdRdcXw3eBPYMMA9/nPpSrFoDbbbIGSpwqnNR+GiUq/1espg5 7dKwmeVmH/Ipbxrp5Onc7MyB/yLJLs2iv4unj3rHy496/qyJVXa2qH/fUceeAdf6 TVY5g1jxzQUWXUM5LFX+38qbDwDT20ilNufC9NLWjfh4R4r99FFFDKPMEcvPfCSu ahemvcRQ+JQB90dPeq1wdrcvWuyYVx81r+QFYoqHHnEuaMLz6j3CQWd5uasFtLaT jk7yAoYBhZ2cE6oMQ75DFH6c6qNvBLYfBVRAd60yGUaS3RWRZna6SKepepEX8e07 3i7RDQ7twQM= =0b5z -----END PGP SIGNATURE-----