SUSE SLES12 Security Update : kernel (SUSE-SU-2017:2099-1)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

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

Description :

This update for the Linux Kernel 3.12.60-52_57 fixes several issues.
The following security bugs were fixed :

- CVE-2017-7533: A bug in inotify code allowed local users
to escalate privilege (bsc#1050751).

- CVE-2017-7645: The NFSv2/NFSv3 server in the nfsd
subsystem in the Linux kernel allowed remote attackers
to cause a denial of service (system crash) via a long
RPC reply, related to net/sunrpc/svc.c,
fs/nfsd/nfs3xdr.c, and fs/nfsd/nfsxdr.c (bsc#1046191).

- CVE-2017-2636: Race condition in drivers/tty/n_hdlc.c in
the Linux kernel allowed local users to gain privileges
or cause a denial of service (double free) by setting
the HDLC line discipline (bsc#1027575).

- CVE-2017-9242: The __ip6_append_data function in
net/ipv6/ip6_output.c in the Linux kernel is 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).

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.

See also :

https://bugzilla.suse.com/1027575
https://bugzilla.suse.com/1042892
https://bugzilla.suse.com/1046191
https://bugzilla.suse.com/1050751
https://www.suse.com/security/cve/CVE-2017-2636.html
https://www.suse.com/security/cve/CVE-2017-7533.html
https://www.suse.com/security/cve/CVE-2017-7645.html
https://www.suse.com/security/cve/CVE-2017-9242.html
http://www.nessus.org/u?4ee5c8d3

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:zypper in -t patch
SUSE-SLE-SAP-12-2017-1304=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-2017-1304=1

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

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:F/RL:U/RC:ND)
Public Exploit Available : true

Family: SuSE Local Security Checks

Nessus Plugin ID: 102317 ()

Bugtraq ID:

CVE ID: CVE-2017-2636
CVE-2017-7533
CVE-2017-7645
CVE-2017-9242

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