Operating System:

[Linux]

Published:

28 August 2019

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3258
              Slackware 14.2 updates Linux kernel to 4.4.190
                              28 August 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           kernel
Publisher:         Slackware
Operating System:  Slackware
                   Linux variants
Impact/Access:     Denial of Service -- Console/Physical
                   Reduced Security  -- Console/Physical
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-20961  

Original Bulletin: 
   https://seclists.org/bugtraq/2019/Aug/48

Comment: This advisory references vulnerabilities in the Linux kernel that 
         also affect distributions other than Slackware. It is recommended 
         that administrators running Linux check for an updated version of 
         the kernel for their system.

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[slackware-security] Slackware 14.2 kernel (SSA:2019-238-01)

New kernel packages are available for Slackware 14.2 to fix a security issue.


Here are the details from the Slackware 14.2 ChangeLog:
+--------------------------+
patches/packages/linux-4.4.190/*:  Upgraded.
  These updates fix various bugs and a minor local denial-of-service security
  issue. They also change this option:
    FANOTIFY_ACCESS_PERMISSIONS n -> y
  This is needed by on-access virus scanning software.
  Be sure to upgrade your initrd after upgrading the kernel packages.
  If you use lilo to boot your machine, be sure lilo.conf points to the correct
  kernel and initrd and run lilo as root to update the bootloader.
  If you use elilo to boot your machine, you should run eliloconfig to copy the
  kernel and initrd to the EFI System Partition.
  For more information, see:
    Fixed in 4.4.190:
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20961
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project!  :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated packages for Slackware 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-firmware-20190821_c0fb3d9-noarch-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-generic-4.4.190-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-generic-smp-4.4.190_smp-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-headers-4.4.190_smp-x86-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-huge-4.4.190-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-huge-smp-4.4.190_smp-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-modules-4.4.190-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-modules-smp-4.4.190_smp-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/linux-4.4.190/kernel-source-4.4.190_smp-noarch-1.txz

Updated packages for Slackware x86_64 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/linux-4.4.190/kernel-firmware-20190821_c0fb3d9-noarch-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/linux-4.4.190/kernel-generic-4.4.190-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/linux-4.4.190/kernel-headers-4.4.190-x86-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/linux-4.4.190/kernel-huge-4.4.190-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/linux-4.4.190/kernel-modules-4.4.190-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/linux-4.4.190/kernel-source-4.4.190-noarch-1.txz


MD5 signatures:
+-------------+

Slackware 14.2 packages:
e6d93deb002a0851d04e31927750ab38  kernel-firmware-20190821_c0fb3d9-noarch-1.txz
9f2f5d68193192a02f1acd50961d7bf8  kernel-generic-4.4.190-i586-1.txz
fd8df419fd9bb18eaa024f3b283fe3d9  kernel-generic-smp-4.4.190_smp-i686-1.txz
1321b644dcb1885940bb77227e3fa7f4  kernel-headers-4.4.190_smp-x86-1.txz
784aaadf0689e6fba438a2b17eb7bee8  kernel-huge-4.4.190-i586-1.txz
e4aba4622501579386773c053a8fe881  kernel-huge-smp-4.4.190_smp-i686-1.txz
18a3e5ec95a00cca03c9a6998b0970ee  kernel-modules-4.4.190-i586-1.txz
5718428fc20cf09a60c7dd4106f960c8  kernel-modules-smp-4.4.190_smp-i686-1.txz
b90f8185ba89e2c2ad5ac81733977376  kernel-source-4.4.190_smp-noarch-1.txz

Slackware x86_64 14.2 packages:
e6d93deb002a0851d04e31927750ab38  kernel-firmware-20190821_c0fb3d9-noarch-1.txz
8608bffca8687e5be1c3c2e80e268e77  kernel-generic-4.4.190-x86_64-1.txz
7e1f2e3cb09ed5f357ae461713a398f1  kernel-headers-4.4.190-x86-1.txz
daa8f51d8d6f050791694d53575d7c6b  kernel-huge-4.4.190-x86_64-1.txz
0d389d5a64ab573d567991d9eba7a235  kernel-modules-4.4.190-x86_64-1.txz
9d92130a6d4906c5a30dab0950a28416  kernel-source-4.4.190-noarch-1.txz


Installation instructions:
+------------------------+

Upgrade the packages as root:
# upgradepkg kernel-*.txz

If you are using an initrd, you'll need to rebuild it.

For a 32-bit SMP machine, use this command (substitute the appropriate
kernel version if you are not running Slackware 14.2):
# /usr/share/mkinitrd/mkinitrd_command_generator.sh -k 4.4.190-smp | bash

For a 64-bit machine, or a 32-bit uniprocessor machine, use this command
(substitute the appropriate kernel version if you are not running
Slackware 14.2):
# /usr/share/mkinitrd/mkinitrd_command_generator.sh -k 4.4.190 | bash

Please note that "uniprocessor" has to do with the kernel you are running,
not with the CPU. Most systems should run the SMP kernel (if they can)
regardless of the number of cores the CPU has. If you aren't sure which
kernel you are running, run "uname -a". If you see SMP there, you are
running the SMP kernel and should use the 4.4.190-smp version when running
mkinitrd_command_generator. Note that this is only for 32-bit -- 64-bit
systems should always use 4.4.190 as the version.

If you are using lilo or elilo to boot the machine, you'll need to ensure
that the machine is properly prepared before rebooting.

If using LILO:
By default, lilo.conf contains an image= line that references a symlink
that always points to the correct kernel. No editing should be required
unless your machine uses a custom lilo.conf. If that is the case, be sure
that the image= line references the correct kernel file.  Either way,
you'll need to run "lilo" as root to reinstall the boot loader.

If using elilo:
Ensure that the /boot/vmlinuz symlink is pointing to the kernel you wish
to use, and then run eliloconfig to update the EFI System Partition.


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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