SUSE-SU-2021:14764-1: important: Security update for the Linux Kernel

sle-updates at lists.suse.com sle-updates at lists.suse.com
Tue Jul 13 13:35:22 UTC 2021


   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:14764-1
Rating:             important
References:         #1184081 #1184391 #1184611 #1185859 #1185861 
                    #1185862 #1185863 #1186062 #1187038 #1187452 
                    #1187595 
Cross-References:   CVE-2020-24586 CVE-2020-24587 CVE-2020-24588
                    CVE-2020-26139 CVE-2020-36386 CVE-2021-0512
                    CVE-2021-29154 CVE-2021-32399 CVE-2021-34693
                   
CVSS scores:
                    CVE-2020-24586 (NVD) : 3.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
                    CVE-2020-24586 (SUSE): 4.7 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
                    CVE-2020-24587 (NVD) : 2.6 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
                    CVE-2020-24587 (SUSE): 4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
                    CVE-2020-24588 (NVD) : 3.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
                    CVE-2020-24588 (SUSE): 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
                    CVE-2020-26139 (NVD) : 5.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2020-26139 (SUSE): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
                    CVE-2020-36386 (NVD) : 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
                    CVE-2020-36386 (SUSE): 5.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
                    CVE-2021-0512 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-29154 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-29154 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-32399 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-32399 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-34693 (SUSE): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Products:
                    SUSE Linux Enterprise Server 11-SP4-LTSS
                    SUSE Linux Enterprise Server 11-EXTRA
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that solves 9 vulnerabilities and has two fixes
   is now available.

Description:


   The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various
   security and bugfixes.


   The following security bugs were fixed:

   - CVE-2021-0512: Fixed a possible out of bounds write due to a heap buffer
     overflow in __hidinput_change_resolution_multipliers. This could lead to
     local escalation of privilege with no additional execution privileges
     needed. User interaction is not needed for exploitation. (bsc#1187595)
   - CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local
     users to obtain sensitive information from kernel stack memory because
     parts of a data structure are uninitialized. (bsc#1187452)
   - CVE-2020-36386: Fixed an out-of-bounds read in
     hci_extended_inquiry_result_evt. (bsc#1187038)
   - CVE-2020-24588: Fixed a bug that could allow an adversary to abuse
     devices that support receiving non-SSP A-MSDU frames to inject arbitrary
     network packets. (bsc#1185861 bsc#1185863)
   - CVE-2021-29154: Fixed an incorrect computation of branch displacements
     in the BPF JIT compilers, which could allow to execute arbitrary code
     within the kernel context. (bsc#1184391)
   - CVE-2021-32399: Fixed a race condition in net/bluetooth/hci_request.c
     for removal of the HCI controller. (bsc#1184611)
   - CVE-2020-24586: Fixed a bug that, under the right circumstances, allows
     to inject arbitrary network packets and/or exfiltrate user data when
     another device sends fragmented frames encrypted using WEP, CCMP, or
     GCMP. (bsc#1185859 bsc#1185863)
   - CVE-2020-26139: Fixed a bug that allows an Access Point (AP) to forward
     EAPOL frames to other clients even though the sender has not yet
     successfully authenticated. This might be abused in projected Wi-Fi
     networks to launch denial-of-service attacks against connected clients
     and made it easier to exploit other vulnerabilities in connected
     clients. (bsc#1185863 bsc#1186062)
   - CVE-2020-24587: Fixed a bug that allows an adversary to decrypt selected
     fragments when another device sends fragmented frames and the WEP, CCMP,
     or GCMP encryption key is periodically renewed. (bsc#1185862 bsc#1185863)

   The following non-security bugs were fixed:

   - md: do not flush workqueue unconditionally in md_open (bsc#1184081).
   - md: factor out a mddev_find_locked helper from mddev_find (bsc#1184081).
   - md: md_open returns -EBUSY when entering racing area (bsc#1184081).
   - md: split mddev_find (bsc#1184081).


Special Instructions and Notes:

   Please reboot the system after installing this update.

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 Server 11-SP4-LTSS:

      zypper in -t patch slessp4-kernel-source-14764=1

   - SUSE Linux Enterprise Server 11-EXTRA:

      zypper in -t patch slexsp3-kernel-source-14764=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-kernel-source-14764=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):

      kernel-default-3.0.101-108.129.1
      kernel-default-base-3.0.101-108.129.1
      kernel-default-devel-3.0.101-108.129.1
      kernel-source-3.0.101-108.129.1
      kernel-syms-3.0.101-108.129.1
      kernel-trace-3.0.101-108.129.1
      kernel-trace-base-3.0.101-108.129.1
      kernel-trace-devel-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 x86_64):

      kernel-ec2-3.0.101-108.129.1
      kernel-ec2-base-3.0.101-108.129.1
      kernel-ec2-devel-3.0.101-108.129.1
      kernel-xen-3.0.101-108.129.1
      kernel-xen-base-3.0.101-108.129.1
      kernel-xen-devel-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (ppc64):

      kernel-bigmem-3.0.101-108.129.1
      kernel-bigmem-base-3.0.101-108.129.1
      kernel-bigmem-devel-3.0.101-108.129.1
      kernel-ppc64-3.0.101-108.129.1
      kernel-ppc64-base-3.0.101-108.129.1
      kernel-ppc64-devel-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (s390x):

      kernel-default-man-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586):

      kernel-pae-3.0.101-108.129.1
      kernel-pae-base-3.0.101-108.129.1
      kernel-pae-devel-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586 ia64 ppc64 s390x x86_64):

      kernel-default-extra-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586 x86_64):

      kernel-xen-extra-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-EXTRA (x86_64):

      kernel-trace-extra-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-EXTRA (ppc64):

      kernel-ppc64-extra-3.0.101-108.129.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586):

      kernel-pae-extra-3.0.101-108.129.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):

      kernel-default-debuginfo-3.0.101-108.129.1
      kernel-default-debugsource-3.0.101-108.129.1
      kernel-trace-debuginfo-3.0.101-108.129.1
      kernel-trace-debugsource-3.0.101-108.129.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 s390x x86_64):

      kernel-default-devel-debuginfo-3.0.101-108.129.1
      kernel-trace-devel-debuginfo-3.0.101-108.129.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

      kernel-ec2-debuginfo-3.0.101-108.129.1
      kernel-ec2-debugsource-3.0.101-108.129.1
      kernel-xen-debuginfo-3.0.101-108.129.1
      kernel-xen-debugsource-3.0.101-108.129.1
      kernel-xen-devel-debuginfo-3.0.101-108.129.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (ppc64):

      kernel-bigmem-debuginfo-3.0.101-108.129.1
      kernel-bigmem-debugsource-3.0.101-108.129.1
      kernel-ppc64-debuginfo-3.0.101-108.129.1
      kernel-ppc64-debugsource-3.0.101-108.129.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586):

      kernel-pae-debuginfo-3.0.101-108.129.1
      kernel-pae-debugsource-3.0.101-108.129.1
      kernel-pae-devel-debuginfo-3.0.101-108.129.1


References:

   https://www.suse.com/security/cve/CVE-2020-24586.html
   https://www.suse.com/security/cve/CVE-2020-24587.html
   https://www.suse.com/security/cve/CVE-2020-24588.html
   https://www.suse.com/security/cve/CVE-2020-26139.html
   https://www.suse.com/security/cve/CVE-2020-36386.html
   https://www.suse.com/security/cve/CVE-2021-0512.html
   https://www.suse.com/security/cve/CVE-2021-29154.html
   https://www.suse.com/security/cve/CVE-2021-32399.html
   https://www.suse.com/security/cve/CVE-2021-34693.html
   https://bugzilla.suse.com/1184081
   https://bugzilla.suse.com/1184391
   https://bugzilla.suse.com/1184611
   https://bugzilla.suse.com/1185859
   https://bugzilla.suse.com/1185861
   https://bugzilla.suse.com/1185862
   https://bugzilla.suse.com/1185863
   https://bugzilla.suse.com/1186062
   https://bugzilla.suse.com/1187038
   https://bugzilla.suse.com/1187452
   https://bugzilla.suse.com/1187595



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