SUSE-SU-2021:2198-1: important: Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP3)

sle-security-updates at sle-security-updates at
Wed Jun 30 13:42:32 UTC 2021

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP3)

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
CVSS scores:
                    CVE-2020-36322 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2020-36322 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
                    CVE-2021-28660 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-28660 (SUSE): 8 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/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-2021-33034 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33034 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
                    CVE-2021-3489 (NVD) : 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
                    CVE-2021-3489 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3490 (NVD) : 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
                    CVE-2021-3490 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15-SP3

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


   This update for the Linux Kernel 5.3.18-57 fixes several issues.

   The following issues were fixed:

   - 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
   - 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
   - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This
     could lead to writing an arbitrary values (bsc#1186111).
   - CVE-2021-32399: Fixed a race condition when removing the HCI controller
   - CVE-2020-36322: Fixed an issue was discovered in FUSE filesystem
     implementation which could have caused a system crash (bsc#1184211).
   - CVE-2021-29154: Fixed incorrect computation of branch displacements,
     allowing arbitrary code execution (bsc#1184391).
   - CVE-2021-28660: Fixed an out of bounds write in rtw_wx_set_scan
   - 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:

   - 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:

   - SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x x86_64):



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