Ubuntu 15.10 will be supported for only one month or less, Canonical has released multiple Linux kernel updates for the other LTS (Long Term Supported) Ubuntu releases, Ubuntu 14.04 LTS (Trusty Tahr) and Ubuntu 12.04 LTS (Precise Pangolin).
According to Ubuntu Security Notice USN-3018-1 and Ubuntu Security Notice USN-3021-1, a total of seven kernel vulnerabilities affected both Ubuntu 14.04 LTS and Ubuntu 12.04 LTS operating systems, including the latest point release of Trusty Tahr, which has received new hardware enablement kernel from Vivid Vervet (Ubuntu 15.04) and Utopic Unicorn (Ubuntu 14.10).
Among the security issues fixed in Ubuntu 12.04 LTS and Ubuntu 14.04 LTS, we can mention information leaks in the core USB, ALSA, X.25 Call Request handling, and Rock Ridge implementations, a use-after-free issue in the generic PPP layer, and bugs in the CDC Network Control Model USB driver and InfiniBand interfaces.
Submitted by: Arnfried Walbrecht
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