Ubuntu Security Notice USN-6707-4

Ubuntu Security Notice 6707-4 - Lonial Con discovered that the netfilter subsystem in the Linux kernel did not properly handle element deactivation in certain cases, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Notselwyn discovered that the netfilter subsystem in the Linux kernel did not properly handle verdict parameters in certain cases, leading to a use- after-free vulnerability. A local attacker could use this to cause …

arbitrary code attacker cases code con deactivation denial of service free kernel linux linux kernel local netfilter notice security security notice service subsystem ubuntu use-after-free usn vulnerability