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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: SUSE-SU-2019:1533-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Module for Public Cloud 12, SUSE Linux Enterprise Server for SAP 12-SP1, SUSE Linux Enterprise Server 12-SP1-LTSS
Datum: Di, 18. Juni 2019, 07:18
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5489
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11479
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11833
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11884
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11477
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17972
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11190
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3846
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11478
Applikationen: Linux

Originalnachricht


SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID: SUSE-SU-2019:1533-1
Rating: important
References: #1104367 #1110785 #1113769 #1120843 #1120885
#1125580 #1125931 #1131543 #1131587 #1132374
#1132472 #1134848 #1135281 #1136424 #1136446
#1137586
Cross-References: CVE-2018-17972 CVE-2019-11190 CVE-2019-11477
CVE-2019-11478 CVE-2019-11479 CVE-2019-11833
CVE-2019-11884 CVE-2019-3846 CVE-2019-5489

Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP1
SUSE Linux Enterprise Server 12-SP1-LTSS
SUSE Linux Enterprise Module for Public Cloud 12
______________________________________________________________________________

An update that solves 9 vulnerabilities and has 7 fixes is
now available.

Description:


The SUSE Linux Enterprise 12 SP1 kernel version 3.12.74 was updated to to
receive various security and bugfixes.

The following security bugs were fixed:

- CVE-2019-11477: A sequence of SACKs may have been crafted by a remote
attacker such that one can trigger an integer overflow, leading to a
kernel panic. (bsc#1137586).

- CVE-2019-11478: It is possible to send a crafted sequence of SACKs which
will fragment the TCP retransmission queue. A remote attacker may be
able to further exploit the fragmented queue to cause an expensive
linked-list walk for subsequent SACKs received for that same TCP
connection.

- CVE-2019-11479: It was possible to send a crafted sequence of SACKs
which will fragment the RACK send map. A remote attacker may be able to
further exploit the fragmented send map to cause an expensive
linked-list walk for subsequent SACKs received for that same TCP
connection. This would have resulted in excess resource consumption due
to low mss values.

- CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and
possibly escalate privileges was found in the mwifiex kernel module
while connecting to a malicious wireless network. (bnc#1136424)

- CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux
kernel allowed local attackers to observe page cache access patterns of
other processes on the same system, potentially allowing sniffing of
secret information. (Fixing this affects the output of the fincore
program.) Limited remote exploitation may be possible, as demonstrated
by latency differences in accessing public files from an Apache HTTP
Server. (bnc#1120843)

- CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out
the unused memory region in the extent tree block, which might allow
local users to obtain sensitive information by reading uninitialized
data in the filesystem. (bnc#1135281)

- CVE-2019-11190: The Linux kernel allowed local users to bypass ASLR on
setuid programs (such as /bin/su) because install_exec_creds() is called
too late in load_elf_binary() in fs/binfmt_elf.c, and thus the
ptrace_may_access() check has a race condition when reading
/proc/pid/stat. (bnc#1131543)

- CVE-2019-11884: The do_hidp_sock_ioctl function in
net/bluetooth/hidp/sock.c in the Linux kernel allowed a local user to
obtain potentially sensitive information from kernel stack memory via a
HIDPCONNADD command, because a name field may not end with a '\0'
character. (bnc#1134848)

- CVE-2018-17972: An issue was discovered in the proc_pid_stack function
in fs/proc/base.c in the Linux kernel It did not ensure that only root
may inspect the kernel stack of an arbitrary task, allowing a local
attacker to exploit racy stack unwinding and leak kernel task stack
contents. (bnc#1110785)

The following non-security bugs were fixed:

- kabi: drop LINUX_MIB_TCPWQUEUETOOBIG snmp counter (bsc#1137586).
- kvm: x86: Fix the duplicated failure path handling in vmx_init
(bsc#1104367).
- lib: add "on"/"off" support to strtobool (bsc#1125931).
- powerpc/tm: Add commandline option to disable hardware transactional
memory (bsc#1125580).
- powerpc/tm: Add TM Unavailable Exception (bsc#1125580).
- powerpc/tm: Flip the HTM switch default to disabled (bsc#1125580).
- powerpc/vdso32: fix CLOCK_MONOTONIC on PPC64 (bsc#1131587).
- powerpc/vdso64: Fix CLOCK_MONOTONIC inconsistencies across Y2038
(bsc#1131587).
- tcp: add tcp_min_snd_mss sysctl (bsc#1137586).
- tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() (bsc#1137586).
- tcp: limit payload size of sacked skbs (bsc#1137586).
- tcp: tcp_fragment() should apply sane memory limits (bsc#1137586).


Special Instructions and Notes:

Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE 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:

- SUSE Linux Enterprise Server for SAP 12-SP1:

zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-1533=1

- SUSE Linux Enterprise Server 12-SP1-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-1533=1

- SUSE Linux Enterprise Module for Public Cloud 12:

zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2019-1533=1



Package List:

- SUSE Linux Enterprise Server for SAP 12-SP1 (noarch):

kernel-devel-3.12.74-60.64.115.1
kernel-macros-3.12.74-60.64.115.1
kernel-source-3.12.74-60.64.115.1

- SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):

kernel-default-3.12.74-60.64.115.1
kernel-default-base-3.12.74-60.64.115.1
kernel-default-base-debuginfo-3.12.74-60.64.115.1
kernel-default-debuginfo-3.12.74-60.64.115.1
kernel-default-debugsource-3.12.74-60.64.115.1
kernel-default-devel-3.12.74-60.64.115.1
kernel-syms-3.12.74-60.64.115.1
kernel-xen-3.12.74-60.64.115.1
kernel-xen-base-3.12.74-60.64.115.1
kernel-xen-base-debuginfo-3.12.74-60.64.115.1
kernel-xen-debuginfo-3.12.74-60.64.115.1
kernel-xen-debugsource-3.12.74-60.64.115.1
kernel-xen-devel-3.12.74-60.64.115.1
kgraft-patch-3_12_74-60_64_115-default-1-2.5.1
kgraft-patch-3_12_74-60_64_115-xen-1-2.5.1

- SUSE Linux Enterprise Server 12-SP1-LTSS (ppc64le s390x x86_64):

kernel-default-3.12.74-60.64.115.1
kernel-default-base-3.12.74-60.64.115.1
kernel-default-base-debuginfo-3.12.74-60.64.115.1
kernel-default-debuginfo-3.12.74-60.64.115.1
kernel-default-debugsource-3.12.74-60.64.115.1
kernel-default-devel-3.12.74-60.64.115.1
kernel-syms-3.12.74-60.64.115.1

- SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):

kernel-xen-3.12.74-60.64.115.1
kernel-xen-base-3.12.74-60.64.115.1
kernel-xen-base-debuginfo-3.12.74-60.64.115.1
kernel-xen-debuginfo-3.12.74-60.64.115.1
kernel-xen-debugsource-3.12.74-60.64.115.1
kernel-xen-devel-3.12.74-60.64.115.1
kgraft-patch-3_12_74-60_64_115-default-1-2.5.1
kgraft-patch-3_12_74-60_64_115-xen-1-2.5.1

- SUSE Linux Enterprise Server 12-SP1-LTSS (noarch):

kernel-devel-3.12.74-60.64.115.1
kernel-macros-3.12.74-60.64.115.1
kernel-source-3.12.74-60.64.115.1

- SUSE Linux Enterprise Server 12-SP1-LTSS (s390x):

kernel-default-man-3.12.74-60.64.115.1

- SUSE Linux Enterprise Module for Public Cloud 12 (x86_64):

kernel-ec2-3.12.74-60.64.115.1
kernel-ec2-debuginfo-3.12.74-60.64.115.1
kernel-ec2-debugsource-3.12.74-60.64.115.1
kernel-ec2-devel-3.12.74-60.64.115.1
kernel-ec2-extra-3.12.74-60.64.115.1
kernel-ec2-extra-debuginfo-3.12.74-60.64.115.1


References:

https://www.suse.com/security/cve/CVE-2018-17972.html
https://www.suse.com/security/cve/CVE-2019-11190.html
https://www.suse.com/security/cve/CVE-2019-11477.html
https://www.suse.com/security/cve/CVE-2019-11478.html
https://www.suse.com/security/cve/CVE-2019-11479.html
https://www.suse.com/security/cve/CVE-2019-11833.html
https://www.suse.com/security/cve/CVE-2019-11884.html
https://www.suse.com/security/cve/CVE-2019-3846.html
https://www.suse.com/security/cve/CVE-2019-5489.html
https://bugzilla.suse.com/1104367
https://bugzilla.suse.com/1110785
https://bugzilla.suse.com/1113769
https://bugzilla.suse.com/1120843
https://bugzilla.suse.com/1120885
https://bugzilla.suse.com/1125580
https://bugzilla.suse.com/1125931
https://bugzilla.suse.com/1131543
https://bugzilla.suse.com/1131587
https://bugzilla.suse.com/1132374
https://bugzilla.suse.com/1132472
https://bugzilla.suse.com/1134848
https://bugzilla.suse.com/1135281
https://bugzilla.suse.com/1136424
https://bugzilla.suse.com/1136446
https://bugzilla.suse.com/1137586

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