Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2017-3567)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

Description of changes:

[2.6.39-400.295.2.el6uek]
- nfsd: stricter decoding of write-like NFSv2/v3 ops (J. Bruce Fields)
[Orabug: 25986995] {CVE-2017-7895}

[2.6.39-400.295.1.el6uek]
- 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)
[Orabug: 25549845]
- 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}

See also :

https://oss.oracle.com/pipermail/el-errata/2017-May/006913.html

Solution :

Update the affected unbreakable enterprise kernel packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.8
(CVSS2#E:POC/RL:OF/RC:C)
Public Exploit Available : true