Canonical released a new Linux kernel security patch for its long-term supported Ubuntu 18.04 LTS (Bionic Beaver) operating system series to address several security vulnerabilities.
The Linux kernel security update addresses three vulnerabilities, including a race condition (CVE-2019-6133) in Linux kernel’s fork() system call, which could allow a local attacker to gain access to services were authorizations are cached, and a flaw (CVE-2018-18397) in the userfaultd implementation, which could allow a local attacker to modify files. Both issues were discovered by Jann Horn.
Furthermore, the kernel security patch addresses a vulnerability (CVE-2018-19854) in Linux kernel’s crypto subsystem, which leads to leaked uninitialized memory to… (read more)
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