SUSE Security Update: Security update for Linux Kernel Live Patch 0 for SLE 12 SP1
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Announcement ID: SUSE-SU-2016:1961-1
Rating: important
References: #971793 #973570 #979064 #979074 #979078 #980856
#980883 #983144 #984764
Cross-References: CVE-2013-7446 CVE-2015-8019 CVE-2015-8816
CVE-2016-0758 CVE-2016-1583 CVE-2016-2053
CVE-2016-3134 CVE-2016-4470 CVE-2016-4565

Affected Products:
SUSE Linux Enterprise Live Patching 12
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An update that fixes 9 vulnerabilities is now available.

Description:

This update for the Linux Kernel 3.12.49-11.1 fixes the several issues.

These security issues were fixed:
– CVE-2016-4470: The key_reject_and_link function in security/keys/key.c
in the Linux kernel did not ensure that a certain data structure is
initialized, which allowed local users to cause a denial of service
(system crash) via vectors involving a crafted keyctl request2 command
(bsc#984764).
– CVE-2016-1583: The ecryptfs_privileged_open function in
fs/ecryptfs/kthread.c in the Linux kernel allowed local users to gain
privileges or cause a denial of service (stack memory consumption) via
vectors involving crafted mmap calls for /proc pathnames, leading to
recursive pagefault handling (bsc#983144).
– CVE-2016-4565: The InfiniBand (aka IB) stack in the Linux kernel
incorrectly relied on the write system call, which allowed local users
to cause a denial of service (kernel memory write operation) or possibly
have unspecified other impact via a uAPI interface (bsc#980883).
– CVE-2016-0758: Integer overflow in lib/asn1_decoder.c in the Linux
kernel allowed local users to gain privileges via crafted ASN.1 data
(bsc#980856).
– CVE-2015-8019: The skb_copy_and_csum_datagram_iovec function in
net/core/datagram.c in the Linux kernel did not accept a length
argument, which allowed local users to cause a denial of service (memory
corruption) or possibly have unspecified other impact via a write system
call followed by a recvmsg system call (bsc#979078).
– CVE-2016-2053: The asn1_ber_decoder function in lib/asn1_decoder.c in
the Linux kernel allowed attackers to cause a denial of service (panic)
via an ASN.1 BER file that lacks a public key, leading to mishandling by
the public_key_verify_signature function in
crypto/asymmetric_keys/public_key.c (bsc#979074).
– CVE-2015-8816: The hub_activate function in drivers/usb/core/hub.c in
the Linux kernel did not properly maintain a hub-interface data
structure, which allowed physically proximate attackers to cause a
denial of service (invalid memory access and system crash) or possibly
have unspecified other impact by unplugging a USB hub device
(bsc#979064).
– CVE-2016-3134: The netfilter subsystem in the Linux kernel did not
validate certain offset fields, which allowed local users to gain
privileges or cause a denial of service (heap memory corruption) via an
IPT_SO_SET_REPLACE setsockopt call (bsc#971793).

This non-security issue was fixed:
– bsc#973570: The fix for CVE-2013-7446 introduced a bug that could have
possibly lead to a softlockup.

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 Live Patching 12:

zypper in -t patch SUSE-SLE-Live-Patching-12-2016-1157=1

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

Package List:

– SUSE Linux Enterprise Live Patching 12 (x86_64):

kgraft-patch-3_12_49-11-default-5-14.2
kgraft-patch-3_12_49-11-xen-5-14.2

References:

https://www.suse.com/security/cve/CVE-2013-7446.html
https://www.suse.com/security/cve/CVE-2015-8019.html
https://www.suse.com/security/cve/CVE-2015-8816.html
https://www.suse.com/security/cve/CVE-2016-0758.html
https://www.suse.com/security/cve/CVE-2016-1583.html
https://www.suse.com/security/cve/CVE-2016-2053.html
https://www.suse.com/security/cve/CVE-2016-3134.html
https://www.suse.com/security/cve/CVE-2016-4470.html
https://www.suse.com/security/cve/CVE-2016-4565.html
https://bugzilla.suse.com/971793
https://bugzilla.suse.com/973570
https://bugzilla.suse.com/979064
https://bugzilla.suse.com/979074
https://bugzilla.suse.com/979078
https://bugzilla.suse.com/980856
https://bugzilla.suse.com/980883
https://bugzilla.suse.com/983144
https://bugzilla.suse.com/984764

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