The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-3567 advisory.

  - The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local     users to cause a denial of service (NULL pointer dereference and system crash) or possibly have     unspecified other impact by using a socket that was not properly bound. (CVE-2015-6937)

  - The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5     improperly emulates a MOV SS, NULL selector instruction, which allows guest OS users to cause a denial     of service (guest OS crash) or gain guest OS privileges via a crafted application. (CVE-2017-2583)

  - The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers     to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the     URG flag. (CVE-2017-6214)

  - 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. (CVE-2017-7184)

  - Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11     allows 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. (CVE-2017-5986)

  - The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lack certain checks for the     end of a buffer, which allows remote attackers to trigger pointer-arithmetic errors or possibly have     unspecified other impact via crafted requests, related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.
    (CVE-2017-7895)

  - The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users     to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers     permanent file-descriptor allocation. (CVE-2015-6252)

  - The KEYS subsystem in the Linux kernel before 3.18 allows 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. (CVE-2017-2647)

  - drivers/usb/serial/whiteheat.c in the Linux kernel before 4.2.4 allows physically proximate attackers to     cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact     via a crafted USB device. NOTE: this ID was incorrectly used for an Apache Cordova issue that has the     correct ID of CVE-2015-8320. (CVE-2015-5257)

  - The treo_attach function in drivers/usb/serial/visor.c in the Linux kernel before 4.5 allows physically     proximate attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly     have unspecified other impact by inserting a USB device that lacks a (1) bulk-in or (2) interrupt-in     endpoint. (CVE-2016-2782)

  - The do_shmat function in ipc/shm.c in the Linux kernel through 4.9.12 does not restrict the address     calculated by a certain rounding operation, which allows 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. (CVE-2017-5669)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - nfsd: stricter decoding of write-like NFSv2/v3 ops (J.
    Bruce Fields) [Orabug: 25986990] (CVE-2017-7895)

  - fnic: Update fnic driver version to 1.6.0.24 (John     Sobecki) [Orabug: 24448585]

  - xen-netfront: Rework the fix for Rx stall during OOM and     network stress (Dongli Zhang) [Orabug: 25450703]

  - xen-netfront: Fix Rx stall during network stress and OOM     (Dongli Zhang) [Orabug: 25450703]

  - ipv6: Skip XFRM lookup if dst_entry in socket cache is     valid (Jakub Sitnicki)

  - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug:
    25549809]

  - ksplice: add sysctls for determining Ksplice features.
    (Jamie Iles) 

  - signal: protect SIGNAL_UNKILLABLE from unintentional     clearing. (Jamie Iles) [Orabug: 25549809]

  - VSOCK: Fix lockdep issue. (Dongli Zhang) [Orabug:
    25559937]

  - VSOCK: sock_put wasn't safe to call in interrupt context     (Dongli Zhang) [Orabug: 25559937]

  - IB/CORE: sync the resouce access in fmr_pool (Wengang     Wang) [Orabug: 25677469]

  - KVM: x86: fix emulation of 'MOV SS, null selector'     (Paolo Bonzini) [Orabug: 25719675] (CVE-2017-2583)     (CVE-2017-2583)

  - ext4: validate s_first_meta_bg at mount time (Eryu Guan)     [Orabug: 25719738] (CVE-2016-10208)

  - sctp: avoid BUG_ON on sctp_wait_for_sndbuf (Marcelo     Ricardo Leitner) [Orabug: 25719810] (CVE-2017-5986)

  - tcp: avoid infinite loop in tcp_splice_read (Eric     Dumazet) [Orabug: 25720813] (CVE-2017-6214)

  - lpfc cannot establish connection with targets that send     PRLI under P2P mode (Joe Jin) [Orabug: 25759083]

  - USB: visor: fix null-deref at probe (Johan Hovold)     [Orabug: 25796594] (CVE-2016-2782)

  - ipc/shm: Fix shmat mmap nil-page protection (Davidlohr     Bueso) [Orabug: 25797012] (CVE-2017-5669)

  - vhost: actually track log eventfd file     (Marc-Andr&eacute  Lureau) [Orabug: 25797052]     (CVE-2015-6252)

  - xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size     harder (Andy Whitcroft) [Orabug: 25814663]     (CVE-2017-7184)

  - xfrm_user: validate XFRM_MSG_NEWAE XFRMA_REPLAY_ESN_VAL     replay_window (Andy Whitcroft) [Orabug: 25814663]     (CVE-2017-7184)

  - KEYS: Remove key_type::match in favour of overriding     default by match_preparse (Aniket Alshi) [Orabug:
    25823962] (CVE-2017-2647) (CVE-2017-2647)

  - USB: whiteheat: fix potential null-deref at probe (Johan     Hovold) [Orabug: 25825105] (CVE-2015-5257)     (CVE-2015-5257)

  - udf: Check path length when reading symlink (Jan Kara)     [Orabug: 25871102] (CVE-2015-9731)

  - udp: properly support MSG_PEEK with truncated buffers     (Eric Dumazet) [Orabug: 25876655] (CVE-2016-10229)

  - block: fix use-after-free in seq file (Vegard Nossum)     [Orabug: 25877530] (CVE-2016-7910)

  - Revert 'fix minor infoleak in get_user_ex' (Brian Maly)     [Orabug: 25790392] (CVE-2016-9644)

  - net: ping: check minimum size on ICMP header length     (Kees Cook) [Orabug: 25766911] (CVE-2016-8399)

  - ipv6: stop sending PTB packets for MTU < 1280 (Hagen     Paul Pfeifer) [Orabug: 25765776] (CVE-2016-10142)

  - sg_write/bsg_write is not fit to be called under     KERNEL_DS (Al Viro) [Orabug: 25765445] (CVE-2016-10088)

  - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter     chang) [Orabug: 25751996] (CVE-2017-7187)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-3566 advisory.

  - The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5     improperly emulates a MOV SS, NULL selector instruction, which allows guest OS users to cause a denial     of service (guest OS crash) or gain guest OS privileges via a crafted application. (CVE-2017-2583)

  - The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers     to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the     URG flag. (CVE-2017-6214)

  - 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. (CVE-2017-7184)

  - The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly     validate meta block groups, which allows physically proximate attackers to cause a denial of service (out-     of-bounds read and system crash) via a crafted ext4 image. (CVE-2016-10208)

  - Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11     allows 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. (CVE-2017-5986)

  - The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lack certain checks for the     end of a buffer, which allows remote attackers to trigger pointer-arithmetic errors or possibly have     unspecified other impact via crafted requests, related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.
    (CVE-2017-7895)

  - The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users     to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers     permanent file-descriptor allocation. (CVE-2015-6252)

  - The KEYS subsystem in the Linux kernel before 3.18 allows 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. (CVE-2017-2647)

  - drivers/usb/serial/whiteheat.c in the Linux kernel before 4.2.4 allows physically proximate attackers to     cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact     via a crafted USB device. NOTE: this ID was incorrectly used for an Apache Cordova issue that has the     correct ID of CVE-2015-8320. (CVE-2015-5257)

  - The treo_attach function in drivers/usb/serial/visor.c in the Linux kernel before 4.5 allows physically     proximate attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly     have unspecified other impact by inserting a USB device that lacks a (1) bulk-in or (2) interrupt-in     endpoint. (CVE-2016-2782)

  - The do_shmat function in ipc/shm.c in the Linux kernel through 4.9.12 does not restrict the address     calculated by a certain rounding operation, which allows 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. (CVE-2017-5669)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - nfsd: stricter decoding of write-like NFSv2/v3 ops (J.
    Bruce Fields) [Orabug: 25986995] (CVE-2017-7895)

  - ocfs2/o2net: o2net_listen_data_ready should do nothing     if socket state is not TCP_LISTEN (Tariq Saeed) [Orabug:
    25510857]

  - IB/CORE: sync the resouce access in fmr_pool (Wengang     Wang) [Orabug: 23750748]

  - ipv6: Skip XFRM lookup if dst_entry in socket cache is     valid (Jakub Sitnicki) [Orabug: 25534688]

  - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug:
    25549845]

  - ksplice: add sysctls for determining Ksplice features.
    (Jamie Iles) 

  - signal: protect SIGNAL_UNKILLABLE from unintentional     clearing. (Jamie Iles) [Orabug: 25549845]

  - KVM: x86: fix emulation of 'MOV SS, null selector'     (Paolo Bonzini) [Orabug: 25719676] (CVE-2017-2583)     (CVE-2017-2583)

  - sctp: avoid BUG_ON on sctp_wait_for_sndbuf (Marcelo     Ricardo Leitner) [Orabug: 25719811] (CVE-2017-5986)

  - tcp: avoid infinite loop in tcp_splice_read (Eric     Dumazet) [Orabug: 25720815] (CVE-2017-6214)

  - USB: visor: fix null-deref at probe (Johan Hovold)     [Orabug: 25796604] (CVE-2016-2782)

  - ipc/shm: Fix shmat mmap nil-page protection (Davidlohr     Bueso) [Orabug: 25797014] (CVE-2017-5669)

  - vhost: actually track log eventfd file     (Marc-Andr&eacute  Lureau) [Orabug: 25797056]     (CVE-2015-6252)

  - xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size     harder (Andy Whitcroft) [Orabug: 25814664]     (CVE-2017-7184)

  - xfrm_user: validate XFRM_MSG_NEWAE XFRMA_REPLAY_ESN_VAL     replay_window (Andy Whitcroft) [Orabug: 25814664]     (CVE-2017-7184)

  - KEYS: Remove key_type::match in favour of overriding     default by match_preparse (David Howells) [Orabug:
    25823965] (CVE-2017-2647) (CVE-2017-2647)

  - USB: whiteheat: fix potential null-deref at probe (Johan     Hovold) [Orabug: 25825107] (CVE-2015-5257)

  - RDS: fix race condition when sending a message on     unbound socket (Quentin Casasnovas) [Orabug: 25871048]     (CVE-2015-6937) (CVE-2015-6937)

  - udf: Check path length when reading symlink (Jan Kara)     [Orabug: 25871104] (CVE-2015-9731)

  - udf: Treat symlink component of type 2 as / (Jan Kara)     [Orabug: 25871104] (CVE-2015-9731)

  - udp: properly support MSG_PEEK with truncated buffers     (Eric Dumazet) [Orabug: 25874741] (CVE-2016-10229)

  - block: fix use-after-free in seq file (Vegard Nossum)     [Orabug: 25877531] (CVE-2016-7910)

  - RHEL: complement upstream workaround for CVE-2016-10142.
    (Quentin Casasnovas) [Orabug: 25765786] (CVE-2016-10142)     (CVE-2016-10142)

  - net: ping: check minimum size on ICMP header length     (Kees Cook) [Orabug: 25766914] (CVE-2016-8399)

  - ipv6: stop sending PTB packets for MTU < 1280 (Hagen     Paul Pfeifer) [Orabug: 25765786] (CVE-2016-10142)

  - sg_write/bsg_write is not fit to be called under     KERNEL_DS (Al Viro) [Orabug: 25765448] (CVE-2016-10088)

  - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter     chang) [Orabug: 25752011] (CVE-2017-7187)

  - tty: n_hdlc: get rid of racy n_hdlc.tbuf (Alexander     Popov) [Orabug: 25696689] (CVE-2017-2636)

  - TTY: n_hdlc, fix lockdep false positive (Jiri Slaby)     [Orabug: 25696689] (CVE-2017-2636)

  - drivers/tty/n_hdlc.c: replace kmalloc/memset by kzalloc     (Fabian Frederick) [Orabug: 25696689] (CVE-2017-2636)

  - list: introduce list_first_entry_or_null (Jiri Pirko)     [Orabug: 25696689] (CVE-2017-2636)

  - firewire: net: guard against rx buffer overflows (Stefan     Richter) [Orabug: 25451538] (CVE-2016-8633)

  - x86/mm/32: Enable full randomization on i386 and X86_32     (Hector Marco-Gisbert) [Orabug: 25463929]     (CVE-2016-3672)

  - x86 get_unmapped_area: Access mmap_legacy_base through     mm_struct member (Radu Caragea) [Orabug: 25463929]     (CVE-2016-3672)

  - sg_start_req: make sure that there's not too many     elements in iovec (Al Viro) [Orabug: 25490377]     (CVE-2015-5707)

  - tcp: take care of truncations done by sk_filter (Eric     Dumazet) [Orabug: 25507232] (CVE-2016-8645)

  - rose: limit sk_filter trim to payload (Willem de Bruijn)     [Orabug: 25507232] (CVE-2016-8645)

  - scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer     (Dan Carpenter) [Orabug: 25507330] (CVE-2016-7425)

  - x86: bpf_jit: fix compilation of large bpf programs     (Alexei Starovoitov) [Orabug: 25507375] (CVE-2015-4700)

  - net: fix a kernel infoleak in x25 module (Kangjie Lu)     [Orabug: 25512417] (CVE-2016-4580)

  - USB: digi_acceleport: do sanity checking for the number     of ports (Oliver Neukum) [Orabug: 25512472]     (CVE-2016-3140)

  - net/llc: avoid BUG_ON in skb_orphan (Eric Dumazet)     [Orabug: 25682437] (CVE-2017-6345)

  - dccp: fix freeing skb too early for IPV6_RECVPKTINFO     (Andrey Konovalov) [Orabug: 25598277] (CVE-2017-6074)

  - vfs: read file_handle only once in handle_to_path (Sasha     Levin) [Orabug: 25388709] (CVE-2015-1420)

  - crypto: algif_hash - Only export and import on sockets     with data (Herbert Xu) [Orabug: 25417807]

  - USB: usbfs: fix potential infoleak in devio (Kangjie Lu)     [Orabug: 25462763] (CVE-2016-4482)

  - net: fix infoleak in llc (Kangjie Lu) [Orabug: 25462811]     (CVE-2016-4485)

  - af_unix: Guard against other == sk in unix_dgram_sendmsg     (Rainer Weikusat) [Orabug: 25464000] (CVE-2013-7446)

  - unix: avoid use-after-free in ep_remove_wait_queue     (Rainer Weikusat) [Orabug: 25464000] (CVE-2013-7446)

ID	Name	Product	Family	Published	Updated	Severity
100235	Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2017-3567)	Nessus	Oracle Linux Local Security Checks	5/17/2017	9/8/2021	critical
100237	OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0105)	Nessus	OracleVM Local Security Checks	5/17/2017	1/4/2021	critical
100234	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3566)	Nessus	Oracle Linux Local Security Checks	5/17/2017	9/8/2021	critical
100238	OracleVM 3.2 : Unbreakable / etc (OVMSA-2017-0106)	Nessus	OracleVM Local Security Checks	5/17/2017	1/4/2021	critical

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