Sicherheit: Mehrere Probleme in Linux

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SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID: SUSE-SU-2018:0660-1
Rating: important
References: #1012382 #1054305 #1060279 #1068032 #1068984
#1070781 #1073311 #1074488 #1074621 #1075091
#1075410 #1075617 #1075621 #1075908 #1075994
#1076017 #1076154 #1076278 #1076849 #1077406
#1077560 #1077922
Cross-References: CVE-2017-13215 CVE-2017-17741 CVE-2017-18017
CVE-2017-18079 CVE-2017-5715 CVE-2018-1000004
CVE-2018-5332 CVE-2018-5333
Affected Products:
SUSE Linux Enterprise Server 11-SP3-LTSS
SUSE Linux Enterprise Server 11-EXTRA
SUSE Linux Enterprise Point of Sale 11-SP3
SUSE Linux Enterprise Debuginfo 11-SP3
______________________________________________________________________________

An update that solves 8 vulnerabilities and has 14 fixes is
now available.

Description:

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

The following security bugs were fixed:

- CVE-2017-5715: Systems with microprocessors utilizing speculative
execution and indirect branch prediction may allow unauthorized
disclosure of information to an attacker with local user access via a
side-channel analysis (bnc#1068032).

The previous fix using CPU Microcode has been complemented by building
the Linux Kernel with return trampolines aka "retpolines".

- CVE-2018-5332: In the Linux kernel the rds_message_alloc_sgs() function
did not validate a value that is used during DMA page allocation,
leading to a heap-based out-of-bounds write (related to the
rds_rdma_extra_size function in net/rds/rdma.c) (bnc#1075621).
- CVE-2018-5333: In the Linux kernel the rds_cmsg_atomic function in
net/rds/rdma.c mishandled cases where page pinning fails or an invalid
address is supplied, leading to an rds_atomic_free_op NULL pointer
dereference (bnc#1075617).
- CVE-2017-18017: The tcpmss_mangle_packet function in
net/netfilter/xt_TCPMSS.c in the Linux kernel allowed remote attackers
to cause a denial of service (use-after-free and memory corruption) or
possibly have unspecified other impact by leveraging the presence of
xt_TCPMSS in an iptables action (bnc#1074488).
- CVE-2017-18079: drivers/input/serio/i8042.c in the Linux kernel allowed
attackers to cause a denial of service (NULL pointer dereference and
system crash) or possibly have unspecified other impact because the
port->exists value can change after it is validated (bnc#1077922).
- CVE-2017-17741: The KVM implementation in the Linux kernel allowed
attackers to obtain potentially sensitive information from kernel
memory, aka a write_mmio stack-based out-of-bounds read, related to
arch/x86/kvm/x86.c and include/trace/events/kvm.h (bnc#1073311).
- CVE-2017-13215: A elevation of privilege vulnerability in the Upstream
kernel skcipher. (bnc#1075908).
- CVE-2018-1000004: In the Linux kernel a race condition vulnerability
exists in the sound system, this can lead to a deadlock and denial of
service condition (bnc#1076017).

The following non-security bugs were fixed:

- cdc-acm: apply quirk for card reader (bsc#1060279).
- Enable CPU vulnerabilities reporting via sysfs
- fork: clear thread stack upon allocation (bsc#1077560).
- kaiser: Set _PAGE_NX only if supported (bnc#1012382, bnc#1076278).
- kbuild: modversions for EXPORT_SYMBOL() for asm (bsc#1074621
bsc#1068032).
- Move kABI fixup for retpolines to proper place.
- powerpc/vdso64: Use double word compare on pointers (bsc#1070781).
- s390: add ppa to the idle loop (bnc#1077406, LTC#163910).
- s390/cpuinfo: show facilities as reported by stfle (bnc#1076849,
LTC#163741).
- storvsc: do not assume SG list is continuous when doing bounce buffers
(bsc#1075410).
- sysfs/cpu: Add vulnerability folder (bnc#1012382).
- sysfs/cpu: Fix typos in vulnerability documentation (bnc#1012382).
- sysfs: spectre_v2, handle spec_ctrl (bsc#1075994 bsc#1075091).
- x86/acpi: Handle SCI interrupts above legacy space gracefully
(bsc#1068984).
- x86/acpi: Reduce code duplication in mp_override_legacy_irq()
(bsc#1068984).
- x86/boot: Fix early command-line parsing when matching at end
(bsc#1068032).
- x86/cpu: Factor out application of forced CPU caps (bsc#1075994
bsc#1075091).
- x86/cpu: Implement CPU vulnerabilites sysfs functions (bnc#1012382).
- x86/CPU: Sync CPU feature flags late (bsc#1075994 bsc#1075091).
- x86/kaiser: Populate shadow PGD with NX bit only if supported by
platform (bsc#1076154 bsc#1076278).
- x86/kaiser: use trampoline stack for kernel entry.
- x86/microcode/intel: Disable late loading on model 79 (bsc#1054305).
- x86/microcode/intel: Extend BDW late-loading further with LLC size check
(bsc#1054305).
- x86/microcode/intel: Extend BDW late-loading with a revision check
(bsc#1054305).
- x86/microcode: Rescan feature flags upon late loading (bsc#1075994
bsc#1075091).
- x86/retpolines/spec_ctrl: disable IBRS on !SKL if retpolines are active
(bsc#1068032).
- x86/spec_ctrl: handle late setting of X86_FEATURE_SPEC_CTRL properly
(bsc#1075994 bsc#1075091).
- x86/spectre_v2: fix ordering in IBRS initialization (bsc#1075994
bsc#1075091).
- x86/spectre_v2: nospectre_v2 means nospec too (bsc#1075994 bsc#1075091).

Patch Instructions:

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

- SUSE Linux Enterprise Server 11-SP3-LTSS:

zypper in -t patch slessp3-kernel-20180212-13505=1

- SUSE Linux Enterprise Server 11-EXTRA:

zypper in -t patch slexsp3-kernel-20180212-13505=1

- SUSE Linux Enterprise Point of Sale 11-SP3:

zypper in -t patch sleposp3-kernel-20180212-13505=1

- SUSE Linux Enterprise Debuginfo 11-SP3:

zypper in -t patch dbgsp3-kernel-20180212-13505=1

To bring your system up-to-date, use "zypper patch".

Package List:

- SUSE Linux Enterprise Server 11-SP3-LTSS (i586 s390x x86_64):

kernel-default-3.0.101-0.47.106.19.1
kernel-default-base-3.0.101-0.47.106.19.1
kernel-default-devel-3.0.101-0.47.106.19.1
kernel-source-3.0.101-0.47.106.19.1
kernel-syms-3.0.101-0.47.106.19.1
kernel-trace-3.0.101-0.47.106.19.1
kernel-trace-base-3.0.101-0.47.106.19.1
kernel-trace-devel-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64):

kernel-ec2-3.0.101-0.47.106.19.1
kernel-ec2-base-3.0.101-0.47.106.19.1
kernel-ec2-devel-3.0.101-0.47.106.19.1
kernel-xen-3.0.101-0.47.106.19.1
kernel-xen-base-3.0.101-0.47.106.19.1
kernel-xen-devel-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64):

kernel-bigsmp-3.0.101-0.47.106.19.1
kernel-bigsmp-base-3.0.101-0.47.106.19.1
kernel-bigsmp-devel-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-SP3-LTSS (s390x):

kernel-default-man-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-SP3-LTSS (i586):

kernel-pae-3.0.101-0.47.106.19.1
kernel-pae-base-3.0.101-0.47.106.19.1
kernel-pae-devel-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-EXTRA (i586 ia64 ppc64 s390x x86_64):

kernel-default-extra-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-EXTRA (i586 x86_64):

kernel-xen-extra-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-EXTRA (x86_64):

kernel-bigsmp-extra-3.0.101-0.47.106.19.1
kernel-trace-extra-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-EXTRA (ppc64):

kernel-ppc64-extra-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Server 11-EXTRA (i586):

kernel-pae-extra-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

kernel-default-3.0.101-0.47.106.19.1
kernel-default-base-3.0.101-0.47.106.19.1
kernel-default-devel-3.0.101-0.47.106.19.1
kernel-ec2-3.0.101-0.47.106.19.1
kernel-ec2-base-3.0.101-0.47.106.19.1
kernel-ec2-devel-3.0.101-0.47.106.19.1
kernel-pae-3.0.101-0.47.106.19.1
kernel-pae-base-3.0.101-0.47.106.19.1
kernel-pae-devel-3.0.101-0.47.106.19.1
kernel-source-3.0.101-0.47.106.19.1
kernel-syms-3.0.101-0.47.106.19.1
kernel-trace-3.0.101-0.47.106.19.1
kernel-trace-base-3.0.101-0.47.106.19.1
kernel-trace-devel-3.0.101-0.47.106.19.1
kernel-xen-3.0.101-0.47.106.19.1
kernel-xen-base-3.0.101-0.47.106.19.1
kernel-xen-devel-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64):

kernel-default-debuginfo-3.0.101-0.47.106.19.1
kernel-default-debugsource-3.0.101-0.47.106.19.1
kernel-trace-debuginfo-3.0.101-0.47.106.19.1
kernel-trace-debugsource-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64):

kernel-ec2-debuginfo-3.0.101-0.47.106.19.1
kernel-ec2-debugsource-3.0.101-0.47.106.19.1
kernel-xen-debuginfo-3.0.101-0.47.106.19.1
kernel-xen-debugsource-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Debuginfo 11-SP3 (x86_64):

kernel-bigsmp-debuginfo-3.0.101-0.47.106.19.1
kernel-bigsmp-debugsource-3.0.101-0.47.106.19.1

- SUSE Linux Enterprise Debuginfo 11-SP3 (i586):

kernel-pae-debuginfo-3.0.101-0.47.106.19.1
kernel-pae-debugsource-3.0.101-0.47.106.19.1

References:

https://www.suse.com/security/cve/CVE-2017-13215.html
https://www.suse.com/security/cve/CVE-2017-17741.html
https://www.suse.com/security/cve/CVE-2017-18017.html
https://www.suse.com/security/cve/CVE-2017-18079.html
https://www.suse.com/security/cve/CVE-2017-5715.html
https://www.suse.com/security/cve/CVE-2018-1000004.html
https://www.suse.com/security/cve/CVE-2018-5332.html
https://www.suse.com/security/cve/CVE-2018-5333.html
https://bugzilla.suse.com/1012382
https://bugzilla.suse.com/1054305
https://bugzilla.suse.com/1060279
https://bugzilla.suse.com/1068032
https://bugzilla.suse.com/1068984
https://bugzilla.suse.com/1070781
https://bugzilla.suse.com/1073311
https://bugzilla.suse.com/1074488
https://bugzilla.suse.com/1074621
https://bugzilla.suse.com/1075091
https://bugzilla.suse.com/1075410
https://bugzilla.suse.com/1075617
https://bugzilla.suse.com/1075621
https://bugzilla.suse.com/1075908
https://bugzilla.suse.com/1075994
https://bugzilla.suse.com/1076017
https://bugzilla.suse.com/1076154
https://bugzilla.suse.com/1076278
https://bugzilla.suse.com/1076849
https://bugzilla.suse.com/1077406
https://bugzilla.suse.com/1077560
https://bugzilla.suse.com/1077922

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