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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: SUSE-SU-2017:2067-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Live Patching 12
Datum: Mo, 7. August 2017, 17:21
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2636
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7533
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7645
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8797
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8890
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9077
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9242

Originalnachricht

   SUSE Security Update: Security update for Linux Kernel Live Patch 1 for SLE
12 SP2
______________________________________________________________________________

Announcement ID: SUSE-SU-2017:2067-1
Rating: important
References: #1027575 #1038564 #1042364 #1042892 #1046191
#1046202 #1046206 #1050751
Cross-References: CVE-2017-2636 CVE-2017-7533 CVE-2017-7645
CVE-2017-8797 CVE-2017-8890 CVE-2017-9077
CVE-2017-9242
Affected Products:
SUSE Linux Enterprise Live Patching 12
______________________________________________________________________________

An update that solves 7 vulnerabilities and has one errata
is now available.

Description:

This update for the Linux Kernel 4.4.21-81 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-2017-8797: The NFSv4 server in the Linux kernel did not properly
validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or
LAYOUTGET operand in a UDP packet from a remote attacker. This type
value is uninitialized upon encountering certain error conditions. This
value is used as an array index for dereferencing, which leads to an
OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system
(bsc#1046202)
- 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).
- CVE-2017-9077: The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c
in the Linux kernel mishandled inheritance, which allowed local users to
cause a denial of service or possibly have unspecified other impact via
crafted system calls, a related issue to CVE-2017-8890 (bsc#1042364).
- CVE-2017-8890: The inet_csk_clone_lock function in
net/ipv4/inet_connection_sock.c in the Linux kernel 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).


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-12-2017-1270=1

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


Package List:

- SUSE Linux Enterprise Live Patching 12 (x86_64):

kgraft-patch-4_4_21-81-default-8-2.1


References:

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-2017-8797.html
https://www.suse.com/security/cve/CVE-2017-8890.html
https://www.suse.com/security/cve/CVE-2017-9077.html
https://www.suse.com/security/cve/CVE-2017-9242.html
https://bugzilla.suse.com/1027575
https://bugzilla.suse.com/1038564
https://bugzilla.suse.com/1042364
https://bugzilla.suse.com/1042892
https://bugzilla.suse.com/1046191
https://bugzilla.suse.com/1046202
https://bugzilla.suse.com/1046206
https://bugzilla.suse.com/1050751

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