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

                               ESB-2021.2291
    Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP3)
                                1 July 2021

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

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

Product:           linux kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Access Privileged Data          -- Existing Account
                   Create Arbitrary Files          -- Existing Account
                   Denial of Service               -- Existing Account
                   Reduced Security                -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-33034 CVE-2021-32399 CVE-2021-29154
                   CVE-2021-28950 CVE-2021-28660 CVE-2021-3490
                   CVE-2021-3489 CVE-2020-36322 

Reference:         ESB-2021.2184
                   ESB-2021.2136
                   ESB-2021.1962
                   ESB-2021.1819
                   ESB-2021.1669
                   ESB-2021.1376
                   ESB-2021.1307

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2021/suse-su-20212198-1

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SUSE Security Update: Security update for the Linux Kernel (Live 

______________________________________________________________________________

Announcement ID:   SUSE-SU-2021:2198-1
Rating:            important
References:        #1183658 #1184710 #1184952 #1185796 #1185847 #1185856
                   #1185899 #1186285
Cross-References:  CVE-2020-36322 CVE-2021-28660 CVE-2021-29154 CVE-2021-32399
                   CVE-2021-33034 CVE-2021-3489 CVE-2021-3490
Affected Products:
                   SUSE Linux Enterprise Module for Live Patching 15-SP3
______________________________________________________________________________

Patch 0 for
SLE 15 SP3)

An update that solves 7 vulnerabilities and has one errata is now available.

Description:

This update for the Linux Kernel 5.3.18-57 fixes several issues.
The following issues were fixed:

  o CVE-2021-3489: Fixed an issue where the eBPF RINGBUF bpf_ringbuf_reserve
    did not check that the allocated size was smaller than the ringbuf size
    (bsc#1185640).
  o CVE-2021-3490: Fixed an issue where the eBPF ALU32 bounds tracking for
    bitwise ops (AND, OR and XOR) did not update the 32-bit bounds (bsc#
    1185641).
  o CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This
    could lead to writing an arbitrary values (bsc#1186111).
  o CVE-2021-32399: Fixed a race condition when removing the HCI controller
    (bsc#1184611).
  o CVE-2020-36322: Fixed an issue was discovered in FUSE filesystem
    implementation which could have caused a system crash (bsc#1184211).
  o CVE-2021-29154: Fixed incorrect computation of branch displacements,
    allowing arbitrary code execution (bsc#1184391).
  o CVE-2021-28660: Fixed an out of bounds write in rtw_wx_set_scan (bsc#
    1183593).
  o Fixed a data loss/data corruption that occurs if there is a write error on
    an md/raid array (bsc#1185847).

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:

  o SUSE Linux Enterprise Module for Live Patching 15-SP3:
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-2198=1

Package List:

  o SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x
    x86_64):
       kernel-livepatch-5_3_18-57-default-2-3.1
       kernel-livepatch-5_3_18-57-default-debuginfo-2-3.1
       kernel-livepatch-SLE15-SP3_Update_0-debugsource-2-3.1


References:

  o https://www.suse.com/security/cve/CVE-2020-36322.html
  o https://www.suse.com/security/cve/CVE-2021-28660.html
  o https://www.suse.com/security/cve/CVE-2021-29154.html
  o https://www.suse.com/security/cve/CVE-2021-32399.html
  o https://www.suse.com/security/cve/CVE-2021-33034.html
  o https://www.suse.com/security/cve/CVE-2021-3489.html
  o https://www.suse.com/security/cve/CVE-2021-3490.html
  o https://bugzilla.suse.com/1183658
  o https://bugzilla.suse.com/1184710
  o https://bugzilla.suse.com/1184952
  o https://bugzilla.suse.com/1185796
  o https://bugzilla.suse.com/1185847
  o https://bugzilla.suse.com/1185856
  o https://bugzilla.suse.com/1185899
  o https://bugzilla.suse.com/1186285

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