SUSE SLES12 Security Update : kernel (SUSE-SU-2017:2791-1)

High Nessus Plugin ID 104030

Synopsis

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

Description

This update for the Linux Kernel 3.12.74-60_64_60 fixes several issues. The following security bugs were fixed :

- CVE-2017-15274: security/keys/keyctl.c in the Linux kernel did not consider the case of a NULL payload in conjunction with a nonzero length value, which allowed local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted add_key or keyctl system call (bsc#1045327).

- CVE-2017-1000112: Updated patch for this issue to be in sync with the other livepatches. Description of the issue: Prevent race condition in net-packet code that could have been exploited by unprivileged users to gain root access (bsc#1052368, bsc#1052311).

- CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c was too late in checking whether an overwrite of an skb data structure may occur, which allowed local users to cause a denial of service (system crash) via crafted system calls (bsc#1042892).

- CVE-2017-8890: The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c allowed attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call (bsc#1038564).

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 Server for SAP 12-SP1:zypper in -t patch SUSE-SLE-SAP-12-SP1-2017-1732=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-1732=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1038564

https://bugzilla.suse.com/show_bug.cgi?id=1042892

https://bugzilla.suse.com/show_bug.cgi?id=1045327

https://bugzilla.suse.com/show_bug.cgi?id=1052311

https://bugzilla.suse.com/show_bug.cgi?id=1052368

https://www.suse.com/security/cve/CVE-2017-1000112/

https://www.suse.com/security/cve/CVE-2017-15274/

https://www.suse.com/security/cve/CVE-2017-8890/

https://www.suse.com/security/cve/CVE-2017-9242/

http://www.nessus.org/u?d63227ec

Plugin Details

Severity: High

ID: 104030

File Name: suse_SU-2017-2791-1.nasl

Version: 3.8

Type: local

Agent: unix

Published: 2017/10/20

Updated: 2019/06/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Temporal Score: 6

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

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

CVSS v3.0

Base Score: 7.8

Temporal Score: 7.2

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kgraft-patch-3_12_74-60_64_60-default, p-cpe:/a:novell:suse_linux:kgraft-patch-3_12_74-60_64_60-xen, 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: 2017/10/19

Vulnerability Publication Date: 2017/05/10

Exploitable With

Core Impact

Metasploit (Linux Kernel UDP Fragmentation Offset (UFO) Privilege Escalation)

Reference Information

CVE: CVE-2017-1000112, CVE-2017-15274, CVE-2017-8890, CVE-2017-9242