CVE-2017-7184

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52.

This kernel update is based on upstream 4.4.59 and fixes at least the following security issue:

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability (CVE-2017-7184).

For other upstream fixes in this update, see the referenced changelogs.

This kernel-tmb update is based on upstream 4.4.59 and fixes at least the following security issue:

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability (CVE-2017-7184).

For other upstream fixes in this update, see the referenced changelogs.

This kernel-linus update is based on upstream 4.4.59 and fixes at least the following security issue:

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability (CVE-2017-7184).

For other upstream fixes in this update, see the referenced changelogs.

The SUSE Linux Enterprise 12 kernel was updated to fix the following security bugs:

• CVE-2017-7184: The Linux kernel allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via unspecified vectors, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bnc#1030573, bnc#1028372).
• CVE-2017-2636: Race condition in drivers/tty/n_hdlc.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline (bnc#1027565).

The SUSE Linux Enterprise 12 kernel was updated to fix the following security bugs:

• CVE-2017-7184: The Linux kernel allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via unspecified vectors, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bnc#1030573, bnc#1028372).
• CVE-2017-2636: Race condition in drivers/tty/n_hdlc.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline (bnc#1027565).

The SUSE Linux Enterprise 12 kernel was updated to fix the following security bugs:

• CVE-2017-7184: The Linux kernel allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via unspecified vectors, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bnc#1030573, bnc#1028372).
• CVE-2017-2636: Race condition in drivers/tty/n_hdlc.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline (bnc#1027565).

This update for the Linux Kernel 4.4.21-81 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.67-60_64_21 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 4.4.21-84 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 4.4.21-69 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.69-60_64_29 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.69-60_64_32 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.55-52_45 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.57-60_35 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.61-52_66 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.60-52_60 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.59-60_45 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 4.4.21-90 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.62-60_64_8 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.60-52_54 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.60-52_49 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.59-60_41 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.62-60_62 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 4.4.38-93 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 4.4.49-92_11 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.67-60_64_24 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.67-60_64_18 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.60-52_63 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

This update for the Linux Kernel 3.12.60-52_57 fixes one issue.

The following security bugs were fixed:

• CVE-2017-7184: The XFRM processsing in the Linux kernel 16.10 allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via an integer overflow, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bsc#1030575).

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.

Notable new features:

• Toleration of newer crypto hardware for z Systems
• USB 2.0 Link power management for Haswell-ULT

The following security bugs were fixed:

• CVE-2017-7308: The packet_set_ring function in net/packet/af_packet.c in the Linux kernel did not properly validate certain block-size data, which allowed local users to cause a denial of service (overflow) or possibly have unspecified other impact via crafted system calls (bnc#1031579)
• CVE-2017-2671: The ping_unhash function in net/ipv4/ping.c in the Linux kernel was too late in obtaining a certain lock and consequently could not ensure that disconnect function calls are safe, which allowed local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call (bnc#1031003)
• CVE-2017-7184: The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel did not validate certain size data after an XFRM_MSG_NEWAE update, which allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability (bsc#1030573).
• CVE-2017-5970: The ipv4_pktinfo_prepare function in net/ipv4/ip_sockglue.c in the Linux kernel allowed attackers to cause a denial of service (system crash) via (1) an application that made crafted system calls or possibly (2) IPv4 traffic with invalid IP options (bsc#1024938).
• CVE-2017-7616: Incorrect error handling in the set_mempolicy and mbind compat syscalls in mm/mempolicy.c in the Linux kernel allowed local users to obtain sensitive information from uninitialized stack data by triggering failure of a certain bitmap operation (bsc#1033336).
• CVE-2017-7294: The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not validate addition of certain levels data, which allowed local users to trigger an integer overflow and out-of-bounds write, and cause a denial of service (system hang or crash) or possibly gain privileges, via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031440)
• CVE-2017-7261: The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not check for a zero value of certain levels data, which allowed local users to cause a denial of service (ZERO_SIZE_PTR dereference, and GPF and possibly panic) via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031052)
• CVE-2017-7187: The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel allowed local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a large command size in an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds write access in the sg_write function (bnc#1030213)
• CVE-2017-6348: The hashbin_delete function in net/irda/irqueue.c in the Linux kernel improperly managed lock dropping, which allowed local users to cause a denial of service (deadlock) via crafted operations on IrDA devices (bnc#1027178)
• CVE-2017-5669: The do_shmat function in ipc/shm.c in the Linux kernel did not restrict the address calculated by a certain rounding operation, which allowed local users to map page zero, and consequently bypass a protection mechanism that exists for the mmap system call, by making crafted shmget and shmat system calls in a privileged context (bnc#1026914)
• CVE-2015-3288: mm/memory.c in the Linux kernel mishandled anonymous pages, which allowed local users to gain privileges or cause a denial of service (page tainting) via a crafted application that triggers writing to page zero (bsc#979021).
• CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket…

The SUSE Linux Enterprise 12 SP2 Realtime kernel was updated to 4.4.74 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2017-1000364: An issue was discovered in the size of the stack guard page on Linux, specifically a 4k stack guard page is not sufficiently large and can be 'jumped' over (the stack guard page is bypassed), this affects Linux Kernel versions 4.11.5 and earlier (the stackguard page was introduced in 2010) (bnc#1039348).
• CVE-2017-1000365: The Linux Kernel imposes a size restriction on the arguments and environmental strings passed through RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but did not take the argument and environment pointers into account, which allowed attackers to bypass this limitation. (bnc#1039354).
• CVE-2017-1000380: sound/core/timer.c in the Linux kernel is vulnerable to a data race in the ALSA /dev/snd/timer driver resulting in local users being able to read information belonging to other users, i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time (bnc#1044125).
• CVE-2017-7346: The vmw_gb_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not validate certain levels data, which allowed local users to cause a denial of service (system hang) via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031796).
• CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c in the Linux kernel is too late in checking whether an overwrite of an skb data structure may occur, which allowed local users to cause a denial of service (system crash) via crafted system calls (bnc#1041431).
• CVE-2017-9076: The dccp_v6_request_recv_sock function in net/dccp/ipv6.c in the Linux kernel mishandled inheritance, which allowed local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890 (bnc#1039885).
• CVE-2017-9077: The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel mishandled inheritance, which allowed local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890 (bnc#1040069).
• CVE-2017-9075: The sctp_v6_create_accept_sk function in net/sctp/ipv6.c in the Linux kernel mishandled inheritance, which allowed local users to cause a denial of service or possibly have unspecified other impact via crafted system calls, a related issue to CVE-2017-8890 (bnc#1039883).
• CVE-2017-9074: The IPv6 fragmentation implementation in the Linux kernel did not consider that the nexthdr field may be associated with an invalid option, which allowed local users to cause a denial of service (out-of-bounds read and BUG) or possibly have unspecified other impact via crafted socket and send system calls (bnc#1039882).
• CVE-2017-7487: The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel mishandled reference counts, which allowed local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl call for an IPX interface (bnc#1038879).
• CVE-2017-8890: The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel allowed attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call (bnc#1038544).
• CVE-2017-9150: The do_check function in kernel/bpf/verifier.c in the Linux kernel did not make the allow_ptr_leaks value available for restricting the output of the print_bpf_insn function, which allowed local users to obtain sensitive address information via crafted bpf system calls (bnc#1040279).
• CVE-2017-7618: crypto/ahash.c in the Linux kernel allowed attackers to cause a denial of service (API operation calling its own callback, and infinite recursion) by triggering EBUSY on a full queue (bnc#1033340).
• CVE-2016-4997:…

The SUSE Linux Enterprise 11 SP4 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2014-9922: The eCryptfs subsystem in the Linux kernel allowed local users to gain privileges via a large filesystem stack that includes an overlayfs layer, related to fs/ecryptfs/main.c and fs/overlayfs/super.c (bsc#1032340).
• CVE-2015-3288: mm/memory.c in the Linux kernel mishandled anonymous pages, which allowed local users to gain privileges or cause a denial of service (page tainting) via a crafted application that triggers writing to page zero (bnc#979021).
• CVE-2015-8970: crypto/algif_skcipher.c in the Linux kernel did not verify that a setkey operation has been performed on an AF_ALG socket before an accept system call is processed, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted application that did not supply a key, related to the lrw_crypt function in crypto/lrw.c (bnc#1008374 bsc#1008850).
• CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c (bnc#1028415).
• CVE-2016-2188: The iowarrior_probe function in drivers/usb/misc/iowarrior.c in the Linux kernel allowed physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor (bnc#970956).
• CVE-2016-4997: The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement (bnc#986362).
• CVE-2016-4998: The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel allowed local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary (bnc#986365).
• CVE-2016-5243: The tipc_nl_compat_link_dump function in net/tipc/netlink_compat.c in the Linux kernel did not properly copy a certain string, which allowed local users to obtain sensitive information from kernel stack memory by reading a Netlink message (bnc#983212).
• CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel allowed remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing (bnc#1003077).
• CVE-2017-1000363: A buffer overflow in kernel commandline handling of the 'lp' parameter could be used to bypass certain secure boot settings. (bnc#1039456).
• CVE-2017-1000364: An issue was discovered in the size of the stack guard page on Linux, specifically a 4k stack guard page is not sufficiently large and can be 'jumped' over (the stack guard page is bypassed), this affects Linux Kernel versions 4.11.5 and earlier (the stackguard page was introduced in 2010) (bnc#1039348).
• CVE-2017-1000365: The Linux Kernel imposes a size restriction on the arguments and environmental strings passed through RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but did not take the argument and environment pointers into account, which allowed attackers to bypass this limitation (bnc#1039354).
• CVE-2017-1000380: sound/core/timer.c in the Linux kernel is vulnerable to a data race in the ALSA /dev/snd/timer driver resulting in local users being able to read information belonging to other users, i.e., uninitialized memory contents may be disclosed when a read…

The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2016-5243: The tipc_nl_compat_link_dump function in net/tipc/netlink_compat.c in the Linux kernel did not properly copy a certain string, which allowed local users to obtain sensitive information from kernel stack memory by reading a Netlink message (bnc#983212)
• CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c (bnc#1028415)
• CVE-2017-2647: The KEYS subsystem in the Linux kernel allowed local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c (bsc#1030593).
• CVE-2017-2671: The ping_unhash function in net/ipv4/ping.c in the Linux kernel was too late in obtaining a certain lock and consequently could not ensure that disconnect function calls are safe, which allowed local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call (bnc#1031003)
• CVE-2017-5669: The do_shmat function in ipc/shm.c in the Linux kernel did not restrict the address calculated by a certain rounding operation, which allowed local users to map page zero, and consequently bypass a protection mechanism that exists for the mmap system call, by making crafted shmget and shmat system calls in a privileged context (bnc#1026914)
• CVE-2017-5970: The ipv4_pktinfo_prepare function in net/ipv4/ip_sockglue.c in the Linux kernel allowed attackers to cause a denial of service (system crash) via (1) an application that made crafted system calls or possibly (2) IPv4 traffic with invalid IP options (bsc#1024938)
• CVE-2017-5986: Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel allowed local users to cause a denial of service (assertion failure and panic) via a multithreaded application that peels off an association in a certain buffer-full state (bsc#1025235)
• CVE-2017-6074: The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel mishandled DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allowed local users to obtain root privileges or cause a denial of service (double free) via an application that made an IPV6_RECVPKTINFO setsockopt system call (bnc#1026024)
• CVE-2017-6214: The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel allowed remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag (bnc#1026722)
• CVE-2017-6348: The hashbin_delete function in net/irda/irqueue.c in the Linux kernel improperly managed lock dropping, which allowed local users to cause a denial of service (deadlock) via crafted operations on IrDA devices (bnc#1027178)
• CVE-2017-6353: net/sctp/socket.c in the Linux kernel did not properly restrict association peel-off operations during certain wait states, which allowed local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-5986 (bnc#1027066)
• CVE-2017-6951: The keyring_search_aux function in security/keys/keyring.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the 'dead' type (bsc#1029850).
• CVE-2017-7184: The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel did not validate certain size data after an XFRM_MSG_NEWAE update, which allowed local users to obtain root…

It was discovered that the xfrm framework for transforming packets in the Linux kernel did not properly validate data received from user space. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges.

USN-3249-1 fixed a vulnerability in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS.

It was discovered that the xfrm framework for transforming packets in the Linux kernel did not properly validate data received from user space. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges.

It was discovered that the xfrm framework for transforming packets in the Linux kernel did not properly validate data received from user space. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges.

USN-3251-1 fixed a vulnerability in the Linux kernel for Ubuntu 16.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.10 for Ubuntu 16.04 LTS.

It was discovered that the xfrm framework for transforming packets in the Linux kernel did not properly validate data received from user space. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges.