Threats tagged 'usn-8818-1'

Multiple security vulnerabilities were discovered in the Linux kernel, including a critical issue affecting some Arm processors where a broadcast TLB invalidation could complete before memory writes were globally observed. This flaw could allow a local attacker to write to memory after permissions were revoked, potentially bypassing memory protections or escalating privileges. Additional flaws affect various subsystems such as InfiniBand drivers, network drivers, exFAT file system, NFS client and server, and several networking protocols. These issues were addressed in updated Linux kernel packages for Ubuntu 20.04 LTS and 22.04 LTS.