SUSE-SU-2023:2147-1: important: Security update for the Linux Kernel

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Tue May 9 16:30:58 UTC 2023



# Security update for the Linux Kernel

Announcement ID: SUSE-SU-2023:2147-1  
Rating: important  
References:

  * #1202353
  * #1206992
  * #1207088
  * #1209687
  * #1209739
  * #1209777
  * #1209871
  * #1210202
  * #1210203
  * #1210301
  * #1210329
  * #1210336
  * #1210337
  * #1210414
  * #1210453
  * #1210469
  * #1210498
  * #1210506
  * #1210629
  * #1210647

  
Cross-References:

  * CVE-2020-36691
  * CVE-2022-2196
  * CVE-2023-1611
  * CVE-2023-1670
  * CVE-2023-1838
  * CVE-2023-1855
  * CVE-2023-1872
  * CVE-2023-1989
  * CVE-2023-1990
  * CVE-2023-1998
  * CVE-2023-2008
  * CVE-2023-2124
  * CVE-2023-2162
  * CVE-2023-2176
  * CVE-2023-30772

  
CVSS scores:

  * CVE-2020-36691 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2020-36691 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2022-2196 ( SUSE ):  6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2022-2196 ( NVD ):  5.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L
  * CVE-2023-1611 ( SUSE ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-1611 ( NVD ):  6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2023-1670 ( SUSE ):  4.4 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
  * CVE-2023-1670 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-1838 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-1838 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2023-1855 ( SUSE ):  6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-1855 ( NVD ):  6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
  * CVE-2023-1872 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-1872 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-1989 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-1989 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-1990 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-1990 ( NVD ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-1998 ( SUSE ):  5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  * CVE-2023-1998 ( NVD ):  5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  * CVE-2023-2008 ( SUSE ):  6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-2008 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-2124 ( SUSE ):  6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-2162 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-2162 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-2176 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-2176 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-30772 ( SUSE ):  6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-30772 ( NVD ):  6.4 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Micro 5.1
  * SUSE Linux Enterprise Micro 5.2
  * SUSE Linux Enterprise Micro for Rancher 5.2
  * SUSE Linux Enterprise Real Time 15 SP3
  * SUSE Real Time Module 15-SP3

  
  
An update that solves 15 vulnerabilities and has five fixes can now be
installed.

## Description:

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various
security and bugfixes.

The following security bugs were fixed:

  * CVE-2023-2124: Fixed an out of bound access in the XFS subsystem that could
    have lead to denial-of-service or potentially privilege escalation
    (bsc#1210498).
  * CVE-2023-1872:Fixed a use after free vulnerability in the io_uring
    subsystem, which could lead to local privilege escalation (bsc#1210414).
  * CVE-2022-2196: Fixed a regression related to KVM that allowed for
    speculative execution attacks (bsc#1206992).
  * CVE-2023-1670: Fixed a use after free in the Xircom 16-bit PCMCIA Ethernet
    driver. A local user could use this flaw to crash the system or potentially
    escalate their privileges on the system (bsc#1209871).
  * CVE-2023-2162: Fixed an use-after-free flaw in iscsi_sw_tcp_session_create
    (bsc#1210647).
  * CVE-2023-2176: A vulnerability was found in compare_netdev_and_ip in
    drivers/infiniband/core/cma.c in RDMA. The improper cleanup results in out-
    of-boundary read, where a local user can utilize this problem to crash the
    system or escalation of privilege (bsc#1210629).
  * CVE-2023-1998: Fixed a use after free during login when accessing the shost
    ipaddress (bsc#1210506).
  * CVE-2023-30772: Fixed a race condition and resultant use-after-free in
    da9150_charger_remove (bsc#1210329).
  * CVE-2023-2008: A flaw was found in the fault handler of the udmabuf device
    driver. An attacker can leverage this vulnerability to escalate privileges
    and execute arbitrary code (bsc#1210453).
  * CVE-2023-1855: Fixed a use after free in xgene_hwmon_remove (bsc#1210202).
  * CVE-2020-36691: Fixed a denial of service vulnerability via a nested Netlink
    policy with a back reference (bsc#1209777).
  * CVE-2023-1990: Fixed a use after free in ndlc_remove (bsc#1210337).
  * CVE-2023-1989: Fixed a use after free in btsdio_remove (bsc#1210336).
  * CVE-2023-1611: Fixed an use-after-free flaw in btrfs_search_slot
    (bsc#1209687).
  * CVE-2023-1838: Fixed an use-after-free flaw in virtio network subcomponent.
    This flaw could allow a local attacker to crash the system and lead to a
    kernel information leak problem. (bsc#1210203).

The following non-security bugs were fixed:

  * Drivers: vmbus: Check for channel allocation before looking up relids (git-
    fixes).
  * cifs: fix negotiate context parsing (bsc#1210301).
  * keys: Fix linking a duplicate key to a keyring's assoc_array (bsc#1207088).
  * vmxnet3: use gro callback when UPT is enabled (bsc#1209739).

## Special Instructions and Notes:

  * Please reboot the system after installing this update.

## Patch Instructions:

To install this SUSE Important 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 Real Time Module 15-SP3  
    zypper in -t patch SUSE-SLE-Module-RT-15-SP3-2023-2147=1

  * SUSE Linux Enterprise Micro 5.1  
    zypper in -t patch SUSE-SUSE-MicroOS-5.1-2023-2147=1

  * SUSE Linux Enterprise Micro 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2023-2147=1

  * SUSE Linux Enterprise Micro for Rancher 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2023-2147=1

## Package List:

  * SUSE Real Time Module 15-SP3 (x86_64)
    * kernel-rt_debug-devel-debuginfo-5.3.18-150300.127.1
    * dlm-kmp-rt-debuginfo-5.3.18-150300.127.1
    * kernel-rt_debug-debuginfo-5.3.18-150300.127.1
    * kernel-rt_debug-devel-5.3.18-150300.127.1
    * kernel-rt-devel-debuginfo-5.3.18-150300.127.1
    * gfs2-kmp-rt-5.3.18-150300.127.1
    * ocfs2-kmp-rt-debuginfo-5.3.18-150300.127.1
    * gfs2-kmp-rt-debuginfo-5.3.18-150300.127.1
    * kernel-rt_debug-debugsource-5.3.18-150300.127.1
    * dlm-kmp-rt-5.3.18-150300.127.1
    * kernel-rt-debuginfo-5.3.18-150300.127.1
    * cluster-md-kmp-rt-debuginfo-5.3.18-150300.127.1
    * cluster-md-kmp-rt-5.3.18-150300.127.1
    * ocfs2-kmp-rt-5.3.18-150300.127.1
    * kernel-syms-rt-5.3.18-150300.127.1
    * kernel-rt-debugsource-5.3.18-150300.127.1
    * kernel-rt-devel-5.3.18-150300.127.1
  * SUSE Real Time Module 15-SP3 (noarch)
    * kernel-devel-rt-5.3.18-150300.127.1
    * kernel-source-rt-5.3.18-150300.127.1
  * SUSE Real Time Module 15-SP3 (nosrc x86_64)
    * kernel-rt-5.3.18-150300.127.1
  * SUSE Real Time Module 15-SP3 (nosrc)
    * kernel-rt_debug-5.3.18-150300.127.1
  * SUSE Linux Enterprise Micro 5.1 (nosrc x86_64)
    * kernel-rt-5.3.18-150300.127.1
  * SUSE Linux Enterprise Micro 5.1 (x86_64)
    * kernel-rt-debuginfo-5.3.18-150300.127.1
    * kernel-rt-debugsource-5.3.18-150300.127.1
  * SUSE Linux Enterprise Micro 5.2 (nosrc x86_64)
    * kernel-rt-5.3.18-150300.127.1
  * SUSE Linux Enterprise Micro 5.2 (x86_64)
    * kernel-rt-debuginfo-5.3.18-150300.127.1
    * kernel-rt-debugsource-5.3.18-150300.127.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (nosrc x86_64)
    * kernel-rt-5.3.18-150300.127.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)
    * kernel-rt-debuginfo-5.3.18-150300.127.1
    * kernel-rt-debugsource-5.3.18-150300.127.1

## References:

  * https://www.suse.com/security/cve/CVE-2020-36691.html
  * https://www.suse.com/security/cve/CVE-2022-2196.html
  * https://www.suse.com/security/cve/CVE-2023-1611.html
  * https://www.suse.com/security/cve/CVE-2023-1670.html
  * https://www.suse.com/security/cve/CVE-2023-1838.html
  * https://www.suse.com/security/cve/CVE-2023-1855.html
  * https://www.suse.com/security/cve/CVE-2023-1872.html
  * https://www.suse.com/security/cve/CVE-2023-1989.html
  * https://www.suse.com/security/cve/CVE-2023-1990.html
  * https://www.suse.com/security/cve/CVE-2023-1998.html
  * https://www.suse.com/security/cve/CVE-2023-2008.html
  * https://www.suse.com/security/cve/CVE-2023-2124.html
  * https://www.suse.com/security/cve/CVE-2023-2162.html
  * https://www.suse.com/security/cve/CVE-2023-2176.html
  * https://www.suse.com/security/cve/CVE-2023-30772.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1202353
  * https://bugzilla.suse.com/show_bug.cgi?id=1206992
  * https://bugzilla.suse.com/show_bug.cgi?id=1207088
  * https://bugzilla.suse.com/show_bug.cgi?id=1209687
  * https://bugzilla.suse.com/show_bug.cgi?id=1209739
  * https://bugzilla.suse.com/show_bug.cgi?id=1209777
  * https://bugzilla.suse.com/show_bug.cgi?id=1209871
  * https://bugzilla.suse.com/show_bug.cgi?id=1210202
  * https://bugzilla.suse.com/show_bug.cgi?id=1210203
  * https://bugzilla.suse.com/show_bug.cgi?id=1210301
  * https://bugzilla.suse.com/show_bug.cgi?id=1210329
  * https://bugzilla.suse.com/show_bug.cgi?id=1210336
  * https://bugzilla.suse.com/show_bug.cgi?id=1210337
  * https://bugzilla.suse.com/show_bug.cgi?id=1210414
  * https://bugzilla.suse.com/show_bug.cgi?id=1210453
  * https://bugzilla.suse.com/show_bug.cgi?id=1210469
  * https://bugzilla.suse.com/show_bug.cgi?id=1210498
  * https://bugzilla.suse.com/show_bug.cgi?id=1210506
  * https://bugzilla.suse.com/show_bug.cgi?id=1210629
  * https://bugzilla.suse.com/show_bug.cgi?id=1210647

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