Security update for kernel live patch 6
Announcement ID: | SUSE-SU-2016:0386-1 |
Rating: | important |
References: | #916225 #940342 #951542 #951625 #953052 #954005 #958601 |
Affected Products: |
An update that solves 5 vulnerabilities and has two fixes is now available.
Description:
This kernel live patch for Linux Kernel 3.12.44-52.10.1 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-12-2016-222=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_44-52_10-default-3-2.1
- kgraft-patch-3_12_44-52_10-xen-3-2.1
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