Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2023:2147-1
Rating:	important
References:	bsc#1202353 bsc#1206992 bsc#1207088 bsc#1209687 bsc#1209739 bsc#1209777 bsc#1209871 bsc#1210202 bsc#1210203 bsc#1210301 bsc#1210329 bsc#1210336 bsc#1210337 bsc#1210414 bsc#1210453 bsc#1210469 bsc#1210498 bsc#1210506 bsc#1210629 bsc#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-2023-2124 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/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 security 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 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)
  • ocfs2-kmp-rt-debuginfo-5.3.18-150300.127.1
  • dlm-kmp-rt-5.3.18-150300.127.1
  • kernel-rt-debuginfo-5.3.18-150300.127.1
  • kernel-rt_debug-devel-5.3.18-150300.127.1
  • gfs2-kmp-rt-debuginfo-5.3.18-150300.127.1
  • kernel-rt_debug-devel-debuginfo-5.3.18-150300.127.1
  • kernel-rt_debug-debuginfo-5.3.18-150300.127.1
  • dlm-kmp-rt-debuginfo-5.3.18-150300.127.1
  • kernel-rt-debugsource-5.3.18-150300.127.1
  • kernel-rt-devel-5.3.18-150300.127.1
  • cluster-md-kmp-rt-debuginfo-5.3.18-150300.127.1
  • kernel-rt_debug-debugsource-5.3.18-150300.127.1
  • kernel-syms-rt-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
  • gfs2-kmp-rt-5.3.18-150300.127.1
  • kernel-rt-devel-debuginfo-5.3.18-150300.127.1
• SUSE Real Time Module 15-SP3 (noarch)
  • kernel-source-rt-5.3.18-150300.127.1
  • kernel-devel-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