Security update for the Linux Kernel

Announcement ID: SUSE-SU-2024:0110-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-26555 ( SUSE ): 5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  • CVE-2020-26555 ( NVD ): 5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  • CVE-2023-51779 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-6121 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  • CVE-2023-6121 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  • CVE-2023-6606 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
  • CVE-2023-6606 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  • CVE-2023-6610 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
  • CVE-2023-6610 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  • CVE-2023-6931 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-6931 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-6932 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-6932 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/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

An update that solves seven vulnerabilities, contains one feature and has six security fixes can now be installed.

Description:

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

The following security bugs were fixed:

  • CVE-2020-26555: Fixed an issue during BR/EDR PIN code pairing in the Bluetooth subsystem that would allow replay attacks (bsc#1179610 bsc#1215237).
  • CVE-2023-6121: Fixed an information leak via dmesg when receiving a crafted packet in the NVMe-oF/TCP subsystem (bsc#1217250).
  • CVE-2023-6606: Fixed an out of bounds read in the SMB client when receiving a malformed length from a server (bsc#1217947).
  • CVE-2023-6610: Fixed an out of bounds read in the SMB client when printing debug information (bsc#1217946).
  • CVE-2023-6931: Fixed an out of bounds write in the Performance Events subsystem when adding a new event (bsc#1218258).
  • CVE-2023-6932: Fixed a use-after-free issue when receiving an IGMP query packet due to reference count mismanagement (bsc#1218253).
  • CVE-2023-51779: Fixed a use-after-free because of a bt_sock_ioctl race condition in bt_sock_recvmsg (bsc#1218559).

The following non-security bugs were fixed:

  • Reviewed and added more information to README.SUSE (jsc#PED-5021).
  • Enabled multibuild for kernel packages (JSC-SLE#5501, boo#1211226, bsc#1218184).
  • clocksource: Avoid accidental unstable marking of clocksources (bsc#1218105).
  • clocksource: Suspend the watchdog temporarily when high read latency detected (bsc#1218105).
  • efi/mokvar: Reserve the table only if it is in boot services data (bsc#1215375).

Special Instructions and Notes:

  • Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE 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 Micro 5.1
    zypper in -t patch SUSE-SUSE-MicroOS-5.1-2024-110=1
  • SUSE Linux Enterprise Micro 5.2
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2024-110=1
  • SUSE Linux Enterprise Micro for Rancher 5.2
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2024-110=1

Package List:

  • SUSE Linux Enterprise Micro 5.1 (nosrc x86_64)
    • kernel-rt-5.3.18-150300.155.1
  • SUSE Linux Enterprise Micro 5.1 (x86_64)
    • kernel-rt-debugsource-5.3.18-150300.155.1
    • kernel-rt-debuginfo-5.3.18-150300.155.1
  • SUSE Linux Enterprise Micro 5.2 (nosrc x86_64)
    • kernel-rt-5.3.18-150300.155.1
  • SUSE Linux Enterprise Micro 5.2 (x86_64)
    • kernel-rt-debugsource-5.3.18-150300.155.1
    • kernel-rt-debuginfo-5.3.18-150300.155.1
  • SUSE Linux Enterprise Micro for Rancher 5.2 (nosrc x86_64)
    • kernel-rt-5.3.18-150300.155.1
  • SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)
    • kernel-rt-debugsource-5.3.18-150300.155.1
    • kernel-rt-debuginfo-5.3.18-150300.155.1

References: