Ubuntu Security Notice 1941-1 – Chanam Park reported a Null pointer flaw in the Linux kernel’s Ceph client. A remote attacker could exploit this flaw to cause a denial of service (system crash). Vasily Kulikov discovered a flaw in the Linux Kernel’s perf tool that allows for privilege escalation. A local user could exploit this flaw to run commands as root when using the perf tool. Jonathan Salwan discovered an information leak in the Linux kernel’s cdrom driver. A local user can exploit this leak to obtain sensitive information from kernel memory if the CD-ROM drive is malfunctioning. Various other issues were also addressed…. Ubuntu Security Notice 1941-1 – Chanam Park reported a Null pointer flaw in the Linux kernel’s Ceph client. A remote attacker could exploit this flaw to cause a denial of service (system crash). Vasily Kulikov discovered a flaw in the Linux Kernel’s perf tool that allows for privilege escalation. A local user could exploit this flaw to run commands as root when using the perf tool. Jonathan Salwan discovered an information leak in the Linux kernel’s cdrom driver. A local user can exploit this leak to obtain sensitive information from kernel memory if the CD-ROM drive is malfunctioning. Various other issues were also addressed.

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