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Sicherheit: Mehrere Probleme im Kernel
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme im Kernel
ID: SUSE-SU-2016:0380-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Live Patching 12
Datum: Mo, 8. Februar 2016, 22:38
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2925
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8539
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6937
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7872
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7990

Originalnachricht

   SUSE Security Update: Security update for kernel live patch 3
______________________________________________________________________________

Announcement ID: SUSE-SU-2016:0380-1
Rating: important
References: #916225 #940342 #951542 #951625 #953052 #954005
#958601
Cross-References: CVE-2015-2925 CVE-2015-6937 CVE-2015-7872
CVE-2015-7990 CVE-2015-8539
Affected Products:
SUSE Linux Enterprise Live Patching 12
______________________________________________________________________________

An update that solves 5 vulnerabilities and has two fixes
is now available.

Description:


This kernel live patch for Linux Kernel 3.12.38-44.1 fixes security issues
and bugs:

Security issues fixed:
- CVE-2015-8539: A negatively instantiated user key could have been used
by a local user to leverage privileges (bnc#958601).

- CVE-2015-6937: A NULL pointer dereference flaw was found in the Reliable
Datagram Sockets (RDS) implementation allowing a local user to cause
system DoS. A verification was missing that the underlying transport
exists when a connection was created. (bsc#953052)

- CVE-2015-7990: RDS: Verify the underlying transport exists before
creating a connection, preventing possible DoS (bsc#953052).

- CVE-2015-7872: Possible crash when trying to garbage collect an
uninstantiated keyring (bsc#951542).

- CVE-2015-2925: The prepend_path function in fs/dcache.c in the Linux
kernel did not properly handle rename actions inside a bind mount, which
allowed local users to bypass an intended container protection mechanism
by renaming a directory, related to a "double-chroot attack
(bnc#951625).

Non-security bugfix were also done:
- xfs: Fix lost direct IO write in the last block (bsc#954005).
- simple fix in kallsyms initialization (bsc#940342 bsc#916225)


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-12-2016-221=1

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


Package List:

- SUSE Linux Enterprise Live Patching 12 (x86_64):

kgraft-patch-3_12_38-44-default-4-2.1
kgraft-patch-3_12_38-44-xen-4-2.1


References:

https://www.suse.com/security/cve/CVE-2015-2925.html
https://www.suse.com/security/cve/CVE-2015-6937.html
https://www.suse.com/security/cve/CVE-2015-7872.html
https://www.suse.com/security/cve/CVE-2015-7990.html
https://www.suse.com/security/cve/CVE-2015-8539.html
https://bugzilla.suse.com/916225
https://bugzilla.suse.com/940342
https://bugzilla.suse.com/951542
https://bugzilla.suse.com/951625
https://bugzilla.suse.com/953052
https://bugzilla.suse.com/954005
https://bugzilla.suse.com/958601

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