The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code.

The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashmd value as a secret, and because jhash (instead of siphash) is used. The hashmd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code.

kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence kernel: triggering AP to send IAPP location updates for stations before the required authentication process has completed can lead to DoS kernel: memory leak in the kernel_read_file function in fs/exec.c allows to cause a denial of service Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR kernel: use-after-free in function __mdiobus_register() in drivers/net/phy/mdio_bus.c kernel: An out-of-bounds read in drivers/scsi/qedi/qedi_dbg.c leading to crash or information disclosure kernel: a NULL pointer dereference in drivers/net/wireless/ath/ath10k/usb.c leads to a crash kernel: Null pointer dereference in the sound/usb/line6/pcm.c kernel: Null pointer dereference in the sound/usb/line6/driver.c kernel: null pointer dereference in drivers/net/wireless/intel/iwlwifi/pcie/trans.c kernel: unprivileged users able to create RAW sockets in AF_IEEE802154 network protocol kernel: unprivileged users able to create RAW sockets in AF_ISDN network protocol kernel: The flow_dissector feature allows device tracking kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c kernel: dos in mlx5_fpga_conn_create_cq() function in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c kernel: dos in mlx5_fw_fatal_reporter_dump() function in drivers/net/ethernet/mellanox/mlx5/core/health.c kernel: memory leak in the nl80211_get_ftm_responder_stats() function in net/wireles…

kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence kernel: triggering AP to send IAPP location updates for stations before the required authentication process has completed can lead to DoS kernel: memory leak in the kernel_read_file function in fs/exec.c allows to cause a denial of service Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR kernel: use-after-free in function __mdiobus_register() in drivers/net/phy/mdio_bus.c kernel: An out-of-bounds read in drivers/scsi/qedi/qedi_dbg.c leading to crash or information disclosure kernel: a NULL pointer dereference in drivers/net/wireless/ath/ath10k/usb.c leads to a crash kernel: Null pointer dereference in the sound/usb/line6/pcm.c kernel: Null pointer dereference in the sound/usb/line6/driver.c kernel: null pointer dereference in drivers/net/wireless/intel/iwlwifi/pcie/trans.c kernel: buffer-overflow hardening in WiFi beacon validation code. kernel: unprivileged users able to create RAW sockets in AF_IEEE802154 network protocol kernel: unprivileged users able to create RAW sockets in AF_ISDN network protocol kernel: The flow_dissector feature allows device tracking kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c kernel: dos in mlx5_fpga_conn_create_cq() function in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c kernel: dos in mlx5_fw_fatal_reporter_dump() function in drivers/net/ethernet/mellanox/mlx5/core/health.c kernel: memory lea…

Affected: Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:16.04:LTS: linux, Ubuntu:16.04:LTS: linux-aws, Ubuntu:16.04:LTS: linux-aws-hwe, Ubuntu:16.04:LTS: linux-azure, Ubuntu:16.04:LTS: linux-gcp, Ubuntu:16.04:LTS: linux-hwe, Ubuntu:16.04:LTS: linux-kvm and 37 more

The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code.