canonical ubuntu linux 12.04 vulnerabilities and exploits

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drivers/tty/n_tty.c in the Linux kernel prior to 4.14.11 allows local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ.

Linux Linux Kernel Canonical Ubuntu Linux 12.04 Canonical Ubuntu Linux 14.04

In change_port_settings in drivers/usb/serial/io_ti.c in the Linux kernel prior to 4.11.3, local users could cause a denial of service by division-by-zero in the serial device layer by trying to set very high baud rates.

Linux Linux Kernel Canonical Ubuntu Linux 14.04 Canonical Ubuntu Linux 12.04

Buffer overflow in net/ceph/auth_x.c in Ceph, as used in the Linux kernel prior to 3.16.3, allows remote malicious users to cause a denial of service (memory corruption and panic) or possibly have unspecified other impact via a long unencrypted auth ticket.

Linux Linux Kernel Canonical Ubuntu Linux 14.04 Canonical Ubuntu Linux 12.04

net/ceph/auth_x.c in Ceph, as used in the Linux kernel prior to 3.16.3, does not properly validate auth replies, which allows remote malicious users to cause a denial of service (system crash) or possibly have unspecified other impact via crafted data from the IP address of a Cep...

Linux Linux Kernel Canonical Ubuntu Linux 14.04 Canonical Ubuntu Linux 12.04

fs/namespace.c in the Linux kernel up to and including 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing o...

Linux Linux Kernel Canonical Ubuntu Linux 12.04 Canonical Ubuntu Linux 14.04

1 EDB exploit

In /drivers/isdn/i4l/isdn_net.c: A user-controlled buffer is copied into a local buffer of constant size using strcpy without a length check which can cause a buffer overflow. This affects the Linux kernel 4.9-stable tree, 4.12-stable tree, 3.18-stable tree, and 4.4-stable tree.

Linux Linux Kernel Canonical Ubuntu Linux 14.04 Canonical Ubuntu Linux 12.04

The Linux kernel from v2.3.36 before v2.6.39 allows local unprivileged users to cause a denial of service (memory consumption) by triggering creation of PTE pages.

Linux Linux Kernel Canonical Ubuntu Linux 11.04 Canonical Ubuntu Linux 12.04

The skb_flow_dissect function in net/core/flow_dissector.c in the Linux kernel up to and including 3.12 allows remote malicious users to cause a denial of service (infinite loop) via a small value in the IHL field of a packet with IPIP encapsulation.

Linux Linux Kernel Canonical Ubuntu Linux 13.10 Canonical Ubuntu Linux 12.04

The udp6_ufo_fragment function in net/ipv6/udp_offload.c in the Linux kernel up to and including 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly perform a certain size comparison before inserting a fragment header, which allows remote malicious users to c...

Linux Linux Kernel Canonical Ubuntu Linux 13.10 Canonical Ubuntu Linux 12.04

The do_remount function in fs/namespace.c in the Linux kernel up to and including 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechan...

Linux Linux Kernel Canonical Ubuntu Linux 12.04 Canonical Ubuntu Linux 14.04

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