SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:0785-1)

Critical Nessus Plugin ID 89993

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The SUSE Linux Enterprise 12 kernel was updated to 3.12.55 to receive various security and bugfixes.

Features added :

- A improved XEN blkfront module was added, which allows more I/O bandwidth. (FATE#320625) It is called xen-blkfront in PV, and xen-vbd-upstream in HVM mode.

The following security bugs were fixed :

- CVE-2013-7446: Use-after-free vulnerability in net/unix/af_unix.c in the Linux kernel allowed local users to bypass intended AF_UNIX socket permissions or cause a denial of service (panic) via crafted epoll_ctl calls (bnc#955654).

- CVE-2015-5707: Integer overflow in the sg_start_req function in drivers/scsi/sg.c in the Linux kernel allowed local users to cause a denial of service or possibly have unspecified other impact via a large iov_count value in a write request (bnc#940338).

- CVE-2015-8709: kernel/ptrace.c in the Linux kernel mishandled uid and gid mappings, which allowed local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states 'there is no kernel bug here' (bnc#959709 bnc#960561).

- CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux kernel did not properly manage the relationship between a lock and a socket, which allowed local users to cause a denial of service (deadlock) via a crafted sctp_accept call (bnc#961509).

- CVE-2015-8785: The fuse_fill_write_pages function in fs/fuse/file.c in the Linux kernel allowed local users to cause a denial of service (infinite loop) via a writev system call that triggers a zero length for the first segment of an iov (bnc#963765).

- CVE-2015-8812: A use-after-free flaw was found in the CXGB3 kernel driver when the network was considered to be congested. This could be used by local attackers to cause machine crashes or potentially code executuon (bsc#966437).

- CVE-2016-0723: Race condition in the tty_ioctl function in drivers/tty/tty_io.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free and system crash) by making a TIOCGETD ioctl call during processing of a TIOCSETD ioctl call (bnc#961500).

- CVE-2016-0774: A pipe buffer state corruption after unsuccessful atomic read from pipe was fixed (bsc#964730).

- CVE-2016-2069: Race conditions in TLB syncing was fixed which could leak to information leaks (bnc#963767).

- CVE-2016-2384: A double-free triggered by invalid USB descriptor in ALSA usb-audio was fixed, which could be exploited by physical local attackers to crash the kernel or gain code execution (bnc#966693).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

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

SUSE Linux Enterprise Workstation Extension 12 :

zypper in -t patch SUSE-SLE-WE-12-2016-460=1

SUSE Linux Enterprise Software Development Kit 12 :

zypper in -t patch SUSE-SLE-SDK-12-2016-460=1

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2016-460=1

SUSE Linux Enterprise Module for Public Cloud 12 :

zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2016-460=1

SUSE Linux Enterprise Live Patching 12 :

zypper in -t patch SUSE-SLE-Live-Patching-12-2016-460=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2016-460=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=812259

https://bugzilla.suse.com/show_bug.cgi?id=816099

https://bugzilla.suse.com/show_bug.cgi?id=855062

https://bugzilla.suse.com/show_bug.cgi?id=867583

https://bugzilla.suse.com/show_bug.cgi?id=884701

https://bugzilla.suse.com/show_bug.cgi?id=899908

https://bugzilla.suse.com/show_bug.cgi?id=922071

https://bugzilla.suse.com/show_bug.cgi?id=937444

https://bugzilla.suse.com/show_bug.cgi?id=940338

https://bugzilla.suse.com/show_bug.cgi?id=940946

https://bugzilla.suse.com/show_bug.cgi?id=941363

https://bugzilla.suse.com/show_bug.cgi?id=943989

https://bugzilla.suse.com/show_bug.cgi?id=945219

https://bugzilla.suse.com/show_bug.cgi?id=947953

https://bugzilla.suse.com/show_bug.cgi?id=949752

https://bugzilla.suse.com/show_bug.cgi?id=950292

https://bugzilla.suse.com/show_bug.cgi?id=951155

https://bugzilla.suse.com/show_bug.cgi?id=955308

https://bugzilla.suse.com/show_bug.cgi?id=955654

https://bugzilla.suse.com/show_bug.cgi?id=956084

https://bugzilla.suse.com/show_bug.cgi?id=956514

https://bugzilla.suse.com/show_bug.cgi?id=957525

https://bugzilla.suse.com/show_bug.cgi?id=957986

https://bugzilla.suse.com/show_bug.cgi?id=959090

https://bugzilla.suse.com/show_bug.cgi?id=959146

https://bugzilla.suse.com/show_bug.cgi?id=959257

https://bugzilla.suse.com/show_bug.cgi?id=959463

https://bugzilla.suse.com/show_bug.cgi?id=959629

https://bugzilla.suse.com/show_bug.cgi?id=959709

https://bugzilla.suse.com/show_bug.cgi?id=960174

https://bugzilla.suse.com/show_bug.cgi?id=960227

https://bugzilla.suse.com/show_bug.cgi?id=960458

https://bugzilla.suse.com/show_bug.cgi?id=960561

https://bugzilla.suse.com/show_bug.cgi?id=960629

https://bugzilla.suse.com/show_bug.cgi?id=961257

https://bugzilla.suse.com/show_bug.cgi?id=961500

https://bugzilla.suse.com/show_bug.cgi?id=961509

https://bugzilla.suse.com/show_bug.cgi?id=961516

https://bugzilla.suse.com/show_bug.cgi?id=961588

https://bugzilla.suse.com/show_bug.cgi?id=961658

https://bugzilla.suse.com/show_bug.cgi?id=961971

https://bugzilla.suse.com/show_bug.cgi?id=962336

https://bugzilla.suse.com/show_bug.cgi?id=962356

https://bugzilla.suse.com/show_bug.cgi?id=962788

https://bugzilla.suse.com/show_bug.cgi?id=962965

https://bugzilla.suse.com/show_bug.cgi?id=963193

https://bugzilla.suse.com/show_bug.cgi?id=963449

https://bugzilla.suse.com/show_bug.cgi?id=963572

https://bugzilla.suse.com/show_bug.cgi?id=963746

https://bugzilla.suse.com/show_bug.cgi?id=963765

https://bugzilla.suse.com/show_bug.cgi?id=963767

https://bugzilla.suse.com/show_bug.cgi?id=963825

https://bugzilla.suse.com/show_bug.cgi?id=963960

https://bugzilla.suse.com/show_bug.cgi?id=964201

https://bugzilla.suse.com/show_bug.cgi?id=964730

https://bugzilla.suse.com/show_bug.cgi?id=965199

https://bugzilla.suse.com/show_bug.cgi?id=965344

https://bugzilla.suse.com/show_bug.cgi?id=965830

https://bugzilla.suse.com/show_bug.cgi?id=965840

https://bugzilla.suse.com/show_bug.cgi?id=965891

https://bugzilla.suse.com/show_bug.cgi?id=966026

https://bugzilla.suse.com/show_bug.cgi?id=966094

https://bugzilla.suse.com/show_bug.cgi?id=966278

https://bugzilla.suse.com/show_bug.cgi?id=966437

https://bugzilla.suse.com/show_bug.cgi?id=966471

https://bugzilla.suse.com/show_bug.cgi?id=966693

https://bugzilla.suse.com/show_bug.cgi?id=966864

https://bugzilla.suse.com/show_bug.cgi?id=966910

https://bugzilla.suse.com/show_bug.cgi?id=967802

https://bugzilla.suse.com/show_bug.cgi?id=968018

https://bugzilla.suse.com/show_bug.cgi?id=968074

https://bugzilla.suse.com/show_bug.cgi?id=968206

https://bugzilla.suse.com/show_bug.cgi?id=968230

https://bugzilla.suse.com/show_bug.cgi?id=968234

https://bugzilla.suse.com/show_bug.cgi?id=968253

https://bugzilla.suse.com/show_bug.cgi?id=969112

https://www.suse.com/security/cve/CVE-2013-7446/

https://www.suse.com/security/cve/CVE-2015-5707/

https://www.suse.com/security/cve/CVE-2015-8709/

https://www.suse.com/security/cve/CVE-2015-8767/

https://www.suse.com/security/cve/CVE-2015-8785/

https://www.suse.com/security/cve/CVE-2015-8812/

https://www.suse.com/security/cve/CVE-2016-0723/

https://www.suse.com/security/cve/CVE-2016-0774/

https://www.suse.com/security/cve/CVE-2016-2069/

https://www.suse.com/security/cve/CVE-2016-2384/

http://www.nessus.org/u?c1ef02b6

Plugin Details

Severity: Critical

ID: 89993

File Name: suse_SU-2016-0785-1.nasl

Version: 2.13

Type: local

Agent: unix

Published: 2016/03/17

Updated: 2018/11/29

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 8.7

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

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 9.4

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debugsource, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-extra, p-cpe:/a:novell:suse_linux:kernel-default-extra-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-xen, p-cpe:/a:novell:suse_linux:kernel-xen-base, p-cpe:/a:novell:suse_linux:kernel-xen-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-xen-debuginfo, p-cpe:/a:novell:suse_linux:kernel-xen-debugsource, p-cpe:/a:novell:suse_linux:kernel-xen-devel, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/03/16

Reference Information

CVE: CVE-2013-7446, CVE-2015-5707, CVE-2015-8709, CVE-2015-8767, CVE-2015-8785, CVE-2015-8812, CVE-2016-0723, CVE-2016-0774, CVE-2016-2069, CVE-2016-2384