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Test ID:1.3.6.1.4.1.25623.1.0.851999
Category:SuSE Local Security Checks
Title:SuSE Update for the Linux Kernel openSUSE-SU-2018:1420-1 (kernel)
Summary:The remote host is missing an update for the 'kernel'; package(s) announced via the openSUSE-SU-2018:1420_1 advisory.
Description:Summary:
The remote host is missing an update for the 'kernel'
package(s) announced via the openSUSE-SU-2018:1420_1 advisory.

Vulnerability Insight:
The openSUSE Leap 15.0 kernel was updated to
receive various security and bugfixes.

The following security bugs were fixed:

- CVE-2018-3639: Systems with microprocessors utilizing speculative
execution and speculative execution of memory reads before the addresses
of all prior memory writes are known may allow unauthorized disclosure
of information to an attacker with local user access via a side-channel
analysis, aka Speculative Store Bypass (SSB), Variant 4 (bsc#1087082).

A new boot commandline option was introduced,
'spec_store_bypass_disable', which can have following values:

- auto: Kernel detects whether your CPU model contains an implementation
of Speculative Store Bypass and picks the most appropriate mitigation.

- on: disable Speculative Store Bypass

- off: enable Speculative Store Bypass

- prctl: Control Speculative Store Bypass per thread via prctl.
Speculative Store Bypass is enabled for a process by default. The
state of the control is inherited on fork.

- seccomp: Same as 'prctl' above, but all seccomp threads will disable
SSB unless they explicitly opt out.

The default is 'seccomp', meaning programs need explicit opt-in into the
mitigation.

Status can be queried via the
/sys/devices/system/cpu/vulnerabilities/spec_store_bypass file, containing:

- 'Vulnerable'

- 'Mitigation: Speculative Store Bypass disabled'

- 'Mitigation: Speculative Store Bypass disabled via prctl'

- 'Mitigation: Speculative Store Bypass disabled via prctl and seccomp'

The following non-security bugs were fixed:

- allow_unsupported: add module tainting on feature use (FATE#323394).

- powerpc/64/kexec: fix race in kexec when XIVE is shutdown (bsc#1088273).

- reiserfs: mark read-write mode unsupported (FATE#323394).

- reiserfs: package in separate KMP (FATE#323394).


Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended
installation methods
like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.0:

zypper in -t patch openSUSE-2018-515=1

Affected Software/OS:
the on openSUSE Leap 15.0.

Solution:
Please install the updated package(s).

CVSS Score:
4.9

CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2018-3639
BugTraq ID: 104232
http://www.securityfocus.com/bid/104232
Cert/CC Advisory: TA18-141A
https://www.us-cert.gov/ncas/alerts/TA18-141A
CERT/CC vulnerability note: VU#180049
https://www.kb.cert.org/vuls/id/180049
Cisco Security Advisory: 20180522 CPU Side-Channel Information Disclosure Vulnerabilities: May 2018
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180521-cpusidechannel
Debian Security Information: DSA-4210 (Google Search)
https://www.debian.org/security/2018/dsa-4210
Debian Security Information: DSA-4273 (Google Search)
https://www.debian.org/security/2018/dsa-4273
https://www.exploit-db.com/exploits/44695/
https://bugs.chromium.org/p/project-zero/issues/detail?id=1528
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00038.html
https://lists.debian.org/debian-lts-announce/2018/09/msg00017.html
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
RedHat Security Advisories: RHSA-2018:1629
https://access.redhat.com/errata/RHSA-2018:1629
RedHat Security Advisories: RHSA-2018:1630
https://access.redhat.com/errata/RHSA-2018:1630
RedHat Security Advisories: RHSA-2018:1632
https://access.redhat.com/errata/RHSA-2018:1632
RedHat Security Advisories: RHSA-2018:1633
https://access.redhat.com/errata/RHSA-2018:1633
RedHat Security Advisories: RHSA-2018:1635
https://access.redhat.com/errata/RHSA-2018:1635
RedHat Security Advisories: RHSA-2018:1636
https://access.redhat.com/errata/RHSA-2018:1636
RedHat Security Advisories: RHSA-2018:1637
https://access.redhat.com/errata/RHSA-2018:1637
RedHat Security Advisories: RHSA-2018:1638
https://access.redhat.com/errata/RHSA-2018:1638
RedHat Security Advisories: RHSA-2018:1639
https://access.redhat.com/errata/RHSA-2018:1639
RedHat Security Advisories: RHSA-2018:1640
https://access.redhat.com/errata/RHSA-2018:1640
RedHat Security Advisories: RHSA-2018:1641
https://access.redhat.com/errata/RHSA-2018:1641
RedHat Security Advisories: RHSA-2018:1642
https://access.redhat.com/errata/RHSA-2018:1642
RedHat Security Advisories: RHSA-2018:1643
https://access.redhat.com/errata/RHSA-2018:1643
RedHat Security Advisories: RHSA-2018:1644
https://access.redhat.com/errata/RHSA-2018:1644
RedHat Security Advisories: RHSA-2018:1645
https://access.redhat.com/errata/RHSA-2018:1645
RedHat Security Advisories: RHSA-2018:1646
https://access.redhat.com/errata/RHSA-2018:1646
RedHat Security Advisories: RHSA-2018:1647
https://access.redhat.com/errata/RHSA-2018:1647
RedHat Security Advisories: RHSA-2018:1648
https://access.redhat.com/errata/RHSA-2018:1648
RedHat Security Advisories: RHSA-2018:1649
https://access.redhat.com/errata/RHSA-2018:1649
RedHat Security Advisories: RHSA-2018:1650
https://access.redhat.com/errata/RHSA-2018:1650
RedHat Security Advisories: RHSA-2018:1651
https://access.redhat.com/errata/RHSA-2018:1651
RedHat Security Advisories: RHSA-2018:1652
https://access.redhat.com/errata/RHSA-2018:1652
RedHat Security Advisories: RHSA-2018:1653
https://access.redhat.com/errata/RHSA-2018:1653
RedHat Security Advisories: RHSA-2018:1654
https://access.redhat.com/errata/RHSA-2018:1654
RedHat Security Advisories: RHSA-2018:1655
https://access.redhat.com/errata/RHSA-2018:1655
RedHat Security Advisories: RHSA-2018:1656
https://access.redhat.com/errata/RHSA-2018:1656
RedHat Security Advisories: RHSA-2018:1657
https://access.redhat.com/errata/RHSA-2018:1657
RedHat Security Advisories: RHSA-2018:1658
https://access.redhat.com/errata/RHSA-2018:1658
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https://access.redhat.com/errata/RHSA-2018:1659
RedHat Security Advisories: RHSA-2018:1660
https://access.redhat.com/errata/RHSA-2018:1660
RedHat Security Advisories: RHSA-2018:1661
https://access.redhat.com/errata/RHSA-2018:1661
RedHat Security Advisories: RHSA-2018:1662
https://access.redhat.com/errata/RHSA-2018:1662
RedHat Security Advisories: RHSA-2018:1663
https://access.redhat.com/errata/RHSA-2018:1663
RedHat Security Advisories: RHSA-2018:1664
https://access.redhat.com/errata/RHSA-2018:1664
RedHat Security Advisories: RHSA-2018:1665
https://access.redhat.com/errata/RHSA-2018:1665
RedHat Security Advisories: RHSA-2018:1666
https://access.redhat.com/errata/RHSA-2018:1666
RedHat Security Advisories: RHSA-2018:1667
https://access.redhat.com/errata/RHSA-2018:1667
RedHat Security Advisories: RHSA-2018:1668
https://access.redhat.com/errata/RHSA-2018:1668
RedHat Security Advisories: RHSA-2018:1669
https://access.redhat.com/errata/RHSA-2018:1669
RedHat Security Advisories: RHSA-2018:1674
https://access.redhat.com/errata/RHSA-2018:1674
RedHat Security Advisories: RHSA-2018:1675
https://access.redhat.com/errata/RHSA-2018:1675
RedHat Security Advisories: RHSA-2018:1676
https://access.redhat.com/errata/RHSA-2018:1676
RedHat Security Advisories: RHSA-2018:1686
https://access.redhat.com/errata/RHSA-2018:1686
RedHat Security Advisories: RHSA-2018:1688
https://access.redhat.com/errata/RHSA-2018:1688
RedHat Security Advisories: RHSA-2018:1689
https://access.redhat.com/errata/RHSA-2018:1689
RedHat Security Advisories: RHSA-2018:1690
https://access.redhat.com/errata/RHSA-2018:1690
RedHat Security Advisories: RHSA-2018:1696
https://access.redhat.com/errata/RHSA-2018:1696
RedHat Security Advisories: RHSA-2018:1710
https://access.redhat.com/errata/RHSA-2018:1710
RedHat Security Advisories: RHSA-2018:1711
https://access.redhat.com/errata/RHSA-2018:1711
RedHat Security Advisories: RHSA-2018:1737
https://access.redhat.com/errata/RHSA-2018:1737
RedHat Security Advisories: RHSA-2018:1738
https://access.redhat.com/errata/RHSA-2018:1738
RedHat Security Advisories: RHSA-2018:1826
https://access.redhat.com/errata/RHSA-2018:1826
RedHat Security Advisories: RHSA-2018:1854
https://access.redhat.com/errata/RHSA-2018:1854
RedHat Security Advisories: RHSA-2018:1965
https://access.redhat.com/errata/RHSA-2018:1965
RedHat Security Advisories: RHSA-2018:1967
https://access.redhat.com/errata/RHSA-2018:1967
RedHat Security Advisories: RHSA-2018:1997
https://access.redhat.com/errata/RHSA-2018:1997
RedHat Security Advisories: RHSA-2018:2001
https://access.redhat.com/errata/RHSA-2018:2001
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https://access.redhat.com/errata/RHSA-2018:2003
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https://access.redhat.com/errata/RHSA-2018:2006
RedHat Security Advisories: RHSA-2018:2060
https://access.redhat.com/errata/RHSA-2018:2060
RedHat Security Advisories: RHSA-2018:2161
https://access.redhat.com/errata/RHSA-2018:2161
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https://access.redhat.com/errata/RHSA-2018:2162
RedHat Security Advisories: RHSA-2018:2164
https://access.redhat.com/errata/RHSA-2018:2164
RedHat Security Advisories: RHSA-2018:2171
https://access.redhat.com/errata/RHSA-2018:2171
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https://access.redhat.com/errata/RHSA-2018:2172
RedHat Security Advisories: RHSA-2018:2216
https://access.redhat.com/errata/RHSA-2018:2216
RedHat Security Advisories: RHSA-2018:2228
https://access.redhat.com/errata/RHSA-2018:2228
RedHat Security Advisories: RHSA-2018:2246
https://access.redhat.com/errata/RHSA-2018:2246
RedHat Security Advisories: RHSA-2018:2250
https://access.redhat.com/errata/RHSA-2018:2250
RedHat Security Advisories: RHSA-2018:2258
https://access.redhat.com/errata/RHSA-2018:2258
RedHat Security Advisories: RHSA-2018:2289
https://access.redhat.com/errata/RHSA-2018:2289
RedHat Security Advisories: RHSA-2018:2309
https://access.redhat.com/errata/RHSA-2018:2309
RedHat Security Advisories: RHSA-2018:2328
https://access.redhat.com/errata/RHSA-2018:2328
RedHat Security Advisories: RHSA-2018:2363
https://access.redhat.com/errata/RHSA-2018:2363
RedHat Security Advisories: RHSA-2018:2364
https://access.redhat.com/errata/RHSA-2018:2364
RedHat Security Advisories: RHSA-2018:2387
https://access.redhat.com/errata/RHSA-2018:2387
RedHat Security Advisories: RHSA-2018:2394
https://access.redhat.com/errata/RHSA-2018:2394
RedHat Security Advisories: RHSA-2018:2396
https://access.redhat.com/errata/RHSA-2018:2396
RedHat Security Advisories: RHSA-2018:2948
https://access.redhat.com/errata/RHSA-2018:2948
RedHat Security Advisories: RHSA-2018:3396
https://access.redhat.com/errata/RHSA-2018:3396
RedHat Security Advisories: RHSA-2018:3397
https://access.redhat.com/errata/RHSA-2018:3397
RedHat Security Advisories: RHSA-2018:3398
https://access.redhat.com/errata/RHSA-2018:3398
RedHat Security Advisories: RHSA-2018:3399
https://access.redhat.com/errata/RHSA-2018:3399
RedHat Security Advisories: RHSA-2018:3400
https://access.redhat.com/errata/RHSA-2018:3400
RedHat Security Advisories: RHSA-2018:3401
https://access.redhat.com/errata/RHSA-2018:3401
RedHat Security Advisories: RHSA-2018:3402
https://access.redhat.com/errata/RHSA-2018:3402
RedHat Security Advisories: RHSA-2018:3407
https://access.redhat.com/errata/RHSA-2018:3407
RedHat Security Advisories: RHSA-2018:3423
https://access.redhat.com/errata/RHSA-2018:3423
RedHat Security Advisories: RHSA-2018:3424
https://access.redhat.com/errata/RHSA-2018:3424
RedHat Security Advisories: RHSA-2018:3425
https://access.redhat.com/errata/RHSA-2018:3425
RedHat Security Advisories: RHSA-2019:0148
https://access.redhat.com/errata/RHSA-2019:0148
RedHat Security Advisories: RHSA-2019:1046
https://access.redhat.com/errata/RHSA-2019:1046
http://www.securitytracker.com/id/1040949
http://www.securitytracker.com/id/1042004
https://usn.ubuntu.com/3651-1/
https://usn.ubuntu.com/3652-1/
https://usn.ubuntu.com/3653-1/
https://usn.ubuntu.com/3653-2/
https://usn.ubuntu.com/3654-1/
https://usn.ubuntu.com/3654-2/
https://usn.ubuntu.com/3655-1/
https://usn.ubuntu.com/3655-2/
https://usn.ubuntu.com/3679-1/
https://usn.ubuntu.com/3680-1/
https://usn.ubuntu.com/3756-1/
https://usn.ubuntu.com/3777-3/
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