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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: SUSE-SU-2018:2935-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Module for Live Patching 15
Datum: Fr, 28. September 2018, 20:39
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10853
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15471
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10938
Applikationen: Linux

Originalnachricht

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 3 for
SLE 15)
______________________________________________________________________________

Announcement ID: SUSE-SU-2018:2935-1
Rating: important
References: #1097108 #1103203 #1105026 #1106191
Cross-References: CVE-2018-10853 CVE-2018-10938 CVE-2018-15471

Affected Products:
SUSE Linux Enterprise Module for Live Patching 15
______________________________________________________________________________

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

Description:

This update for the Linux Kernel 4.12.14-25_13 fixes several issues.

The following security issues were fixed:

- CVE-2018-10938: It was found that a crafted network packet sent remotely
by an attacker may force the kernel to enter an infinite loop in the
cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a
denial-of-service. A certain non-default configuration of LSM (Linux
Security Module) and NetLabel should be set up on a system an attacker
could leverage this flaw (bsc#1106191).
- CVE-2018-15471: It was found that the netback driver allowed frontends
to control mapping of requests to request queues. When processing a
request to set or change this mapping, some input validation (e.g., for
an integer overflow) was missing or flawed, leading to OOB access in
hash handling. A malicious or buggy frontend may caused the (usually
privileged) backend to make out of bounds memory accesses, potentially
resulting in one or more of privilege escalation, Denial of Service
(DoS), or information leaks (bsc#1105026).
- CVE-2018-10853: It was found that the KVM hypervisor emulated
instructions did not check current privilege(CPL) level while emulating
unprivileged instructions. An unprivileged guest user/process could use
this flaw to potentially escalate privileges inside guest (bsc#1097108).


Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- SUSE Linux Enterprise Module for Live Patching 15:

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2018-2076=1



Package List:

- SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):

kernel-livepatch-4_12_14-25_13-default-3-2.3
kernel-livepatch-4_12_14-25_13-default-debuginfo-3-2.3


References:

https://www.suse.com/security/cve/CVE-2018-10853.html
https://www.suse.com/security/cve/CVE-2018-10938.html
https://www.suse.com/security/cve/CVE-2018-15471.html
https://bugzilla.suse.com/1097108
https://bugzilla.suse.com/1103203
https://bugzilla.suse.com/1105026
https://bugzilla.suse.com/1106191

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