Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4884-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4884-1 advisory. Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A local attacker...

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup aka CID-b98e762e3d71.

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CVE-2021-3348

nbdaddsocket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndbqueuerq use-after-free that could be triggered by local attackers with access to the nbd device via an I/O request at a certain point during device setup, aka CID-b98e762e3d71...