SECURITY

USN-2915-1: Django vulnerabilities Ubuntu Security Notice USN-2915-1 1st March, 2016 python-django vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 15.10 Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary Several security issues were fixed in Django. Software description python-django – High-level Python web development framework Details Mark Striemer discovered that Django incorrectly handled user-suppliedredirect URLs containing basic authentication credentials. A remoteattacker could possibly use this issue to perform a cross-site scriptingattack or a malicious redirect. (CVE-2016-2512) Sjoerd Job Postmus discovered that Django incorrectly handled timing whendoing password hashing operations. A remote attacker could possibly usethis issue to perform user enumeration. (CVE-2016-2513) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 15.10: python3-django 1.7.9-1ubuntu5.2 python-django 1.7.9-1ubuntu5.2 Ubuntu 14.04 LTS: python-django 1.6.1-2ubuntu0.12 Ubuntu 12.04 LTS: python-django 1.3.1-4ubuntu1.20 To update your system, [ more… ]

USN-2914-1: OpenSSL vulnerabilities Ubuntu Security Notice USN-2914-1 1st March, 2016 openssl vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 15.10 Ubuntu 14.04 LTS Ubuntu 12.04 LTS Summary Several security issues were fixed in OpenSSL. Software description openssl – Secure Socket Layer (SSL) cryptographic library and tools Details Yuval Yarom, Daniel Genkin, and Nadia Heninger discovered that OpenSSL wasvulnerable to a side-channel attack on modular exponentiation. On certainCPUs, a local attacker could possibly use this issue to recover RSA keys.This flaw is known as CacheBleed. (CVE-2016-0702) Adam Langley discovered that OpenSSL incorrectly handled memory whenparsing DSA private keys. A remote attacker could use this issue to causeOpenSSL to crash, resulting in a denial of service, or possibly executearbitrary code. (CVE-2016-0705) Guido Vranken discovered that OpenSSL incorrectly handled hex digitcalculation in the BN_hex2bn function. A remote attacker [ more… ]