Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (Spectre)

High Nessus Plugin ID 110887


The remote Scientific Linux host is missing one or more security


Security Fix(es) :

- An industry-wide issue was found in the way many modern
microprocessor designs have implemented speculative
execution of Load & Store instructions (a commonly
used performance optimization). It relies on the
presence of a precisely-defined instruction sequence in
the privileged code as well as the fact that memory read
from address to which a recent memory write has occurred
may see an older value and subsequently cause an update
into the microprocessor's data cache even for
speculatively executed instructions that never actually
commit (retire). As a result, an unprivileged attacker
could use this flaw to read privileged memory by
conducting targeted cache side-channel attacks.
(CVE-2018-3639, PowerPC)

- kernel: net/packet: overflow in check for priv area size

- kernel: AIO interface didn't use rw_verify_area() for
checking mandatory locking on files and size of access

- kernel: AIO write triggers integer overflow in some
protocols (CVE-2015-8830)

- kernel: NULL pointer dereference via keyctl

- kernel: ping socket / AF_LLC connect() sin_family race

- kernel: Race condition between multiple
sys_perf_event_open() calls (CVE-2017-6001)

- kernel: Incorrect error handling in the set_mempolicy
and mbind compat syscalls in mm/mempolicy.c

- kernel: mm subsystem does not properly enforce the
CONFIG_STRICT_DEVMEM protection mechanism

- kernel: Double free in the inet_csk_clone_lock function
in net/ipv4/inet_connection_sock.c (CVE-2017-8890)

- kernel: net: sctp_v6_create_accept_sk function
mishandles inheritance (CVE-2017-9075)

- kernel: net: IPv6 DCCP implementation mishandles
inheritance (CVE-2017-9076)

- kernel: net: tcp_v6_syn_recv_sock function mishandles
inheritance (CVE-2017-9077)

- kernel: memory leak when merging buffers in SCSI IO
vectors (CVE-2017-12190)

- kernel: vfs: BUG in truncate_inode_pages_range() and
fuse client (CVE-2017-15121)

- kernel: Race condition in
drivers/md/dm.c:dm_get_from_kobject() allows local users
to cause a denial of service (CVE-2017-18203)

- kernel: a NULL pointer dereference in
net/dccp/output.c:dccp_write_xmit() leads to a system
crash (CVE-2018-1130)

- kernel: Missing length check of payload in
net/sctp/sm_make_chunk.c:_sctp_make_chunk() function
allows denial of service (CVE-2018-5803)


Update the affected packages.

See Also

Plugin Details

Severity: High

ID: 110887

File Name: sl_20180619_kernel_on_SL6_x.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2018/07/03

Modified: 2018/12/27

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS v3.0

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/06/19

Exploitable With

Core Impact

Metasploit (AF_PACKET packet_set_ring Privilege Escalation)

Reference Information

CVE: CVE-2012-6701, CVE-2015-8830, CVE-2016-8650, CVE-2017-12190, CVE-2017-15121, CVE-2017-18203, CVE-2017-2671, CVE-2017-6001, CVE-2017-7308, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2018-1130, CVE-2018-3639, CVE-2018-5803