Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2021:1891-1
Rating:	important
References:	bsc#1176081 bsc#1180846 bsc#1183947 bsc#1184611 bsc#1184675 bsc#1185642 bsc#1185677 bsc#1185680 bsc#1185724 bsc#1185859 bsc#1185860 bsc#1185862 bsc#1185863 bsc#1185898 bsc#1185899 bsc#1185901 bsc#1185938 bsc#1185950 bsc#1185987 bsc#1186060 bsc#1186061 bsc#1186062 bsc#1186111 bsc#1186285 bsc#1186390 bsc#1186484 bsc#1186498
Cross-References:	CVE-2020-24586 CVE-2020-24587 CVE-2020-26139 CVE-2020-26141 CVE-2020-26145 CVE-2020-26147 CVE-2021-23133 CVE-2021-23134 CVE-2021-32399 CVE-2021-33034 CVE-2021-33200 CVE-2021-3491
CVSS scores:	CVE-2020-24586 ( SUSE ): 4.7 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N CVE-2020-24586 ( NVD ): 3.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N CVE-2020-24587 ( SUSE ): 4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVE-2020-24587 ( NVD ): 2.6 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N CVE-2020-26139 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2020-26139 ( NVD ): 5.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-26141 ( SUSE ): 4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVE-2020-26141 ( NVD ): 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2020-26145 ( SUSE ): 5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVE-2020-26145 ( NVD ): 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2020-26147 ( NVD ): 5.4 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N CVE-2021-23133 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-23133 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2021-23134 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-23134 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/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-2021-32399 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/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-2021-33034 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-33200 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-33200 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-3491 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-3491 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise High Availability Extension 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise Live Patching 12-SP4 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE OpenStack Cloud 9 SUSE OpenStack Cloud Crowbar 9

An update that solves 12 vulnerabilities and has 15 security fixes can now be installed.

Description:

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-23133: Fixed a race condition in SCTP sockets, which could lead to privilege escalation from the context of a network service or an unprivileged process. (bnc#1184675)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)

The following non-security bugs were fixed:

• Drivers: hv: vmbus: Increase wait time for VMbus unload (bsc#1185724).
• Drivers: hv: vmbus: Initialize unload_event statically (bsc#1185724).
• af_packet: fix the tx skb protocol in raw sockets with ETH_P_ALL (bsc#1176081).
• ibmvfc: Avoid move login if fast fail is enabled (bsc#1185938 ltc#192043).
• ibmvfc: Handle move login failure (bsc#1185938 ltc#192043).
• ibmvfc: Reinit target retries (bsc#1185938 ltc#192043).
• kABI: Fix kABI after modifying struct __call_single_data (bsc#1180846).
• kabi: preserve struct header_ops after bsc#1176081 fix (bsc#1176081).
• kernel/smp: Provide CSD lock timeout diagnostics (bsc#1180846).
• kernel/smp: add boot parameter for controlling CSD lock debugging (bsc#1180846).
• kernel/smp: add more data to CSD lock debugging (bsc#1180846).
• kernel/smp: make csdlock timeout depend on boot parameter (bsc#1180846).
• kernel/smp: prepare more CSD lock debugging (bsc#1180846).
• md/raid1: properly indicate failure when ending a failed write request (bsc#1185680).
• net/ethernet: Add parse_protocol header_ops support (bsc#1176081).
• net/mlx5e: Remove the wrong assumption about transport offset (bsc#1176081).
• net/mlx5e: Trust kernel regarding transport offset (bsc#1176081).
• net/packet: Ask driver for protocol if not provided by user (bsc#1176081).
• net/packet: Remove redundant skb->protocol set (bsc#1176081).
• net: Do not set transport offset to invalid value (bsc#1176081).
• net: Introduce parse_protocol header_ops callback (bsc#1176081).
• netfilter: conntrack: add new sysctl to disable RST check (bsc#1183947 bsc#1185950).
• netfilter: conntrack: avoid misleading 'invalid' in log message (bsc#1183947 bsc#1185950).
• netfilter: conntrack: improve RST handling when tuple is re-used (bsc#1183947 bsc#1185950).
• netfilter: conntrack: tcp: only close if RST matches exact sequence (bsc#1183947 bsc#1185950).
• s390/entry: save the caller of psw_idle (bsc#1185677).
• smp: Add source and destination CPUs to __call_single_data (bsc#1180846).
• video: hyperv_fb: Add ratelimit on error message (bsc#1185724).

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 OpenStack Cloud 9
  zypper in -t patch SUSE-OpenStack-Cloud-9-2021-1891=1
• SUSE OpenStack Cloud Crowbar 9
  zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2021-1891=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4
  zypper in -t patch SUSE-SLE-HA-12-SP4-2021-1891=1 SUSE-SLE-SAP-12-SP4-2021-1891=1
• SUSE Linux Enterprise High Availability Extension 12 SP4
  zypper in -t patch SUSE-SLE-HA-12-SP4-2021-1891=1
• SUSE Linux Enterprise Live Patching 12-SP4
  zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2021-1891=1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-ESPOS-2021-1891=1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2021-1891=1

Package List:

• SUSE OpenStack Cloud 9 (nosrc x86_64)
  • kernel-default-4.12.14-95.77.1
• SUSE OpenStack Cloud 9 (x86_64)
  • kernel-default-debuginfo-4.12.14-95.77.1
  • kernel-syms-4.12.14-95.77.1
  • kernel-default-base-debuginfo-4.12.14-95.77.1
  • kernel-default-devel-4.12.14-95.77.1
  • kernel-default-debugsource-4.12.14-95.77.1
  • kernel-default-base-4.12.14-95.77.1
  • kernel-default-devel-debuginfo-4.12.14-95.77.1
• SUSE OpenStack Cloud 9 (noarch)
  • kernel-macros-4.12.14-95.77.1
  • kernel-devel-4.12.14-95.77.1
  • kernel-source-4.12.14-95.77.1
• SUSE OpenStack Cloud Crowbar 9 (nosrc x86_64)
  • kernel-default-4.12.14-95.77.1
• SUSE OpenStack Cloud Crowbar 9 (x86_64)
  • kernel-default-debuginfo-4.12.14-95.77.1
  • kernel-syms-4.12.14-95.77.1
  • kernel-default-base-debuginfo-4.12.14-95.77.1
  • kernel-default-devel-4.12.14-95.77.1
  • kernel-default-debugsource-4.12.14-95.77.1
  • kernel-default-base-4.12.14-95.77.1
  • kernel-default-devel-debuginfo-4.12.14-95.77.1
• SUSE OpenStack Cloud Crowbar 9 (noarch)
  • kernel-macros-4.12.14-95.77.1
  • kernel-devel-4.12.14-95.77.1
  • kernel-source-4.12.14-95.77.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (ppc64le x86_64)
  • ocfs2-kmp-default-4.12.14-95.77.1
  • kernel-default-base-4.12.14-95.77.1
  • dlm-kmp-default-4.12.14-95.77.1
  • cluster-md-kmp-default-4.12.14-95.77.1
  • cluster-md-kmp-default-debuginfo-4.12.14-95.77.1
  • kernel-default-debuginfo-4.12.14-95.77.1
  • gfs2-kmp-default-4.12.14-95.77.1
  • kernel-syms-4.12.14-95.77.1
  • kernel-default-base-debuginfo-4.12.14-95.77.1
  • kernel-default-devel-4.12.14-95.77.1
  • kernel-default-debugsource-4.12.14-95.77.1
  • gfs2-kmp-default-debuginfo-4.12.14-95.77.1
  • ocfs2-kmp-default-debuginfo-4.12.14-95.77.1
  • dlm-kmp-default-debuginfo-4.12.14-95.77.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (nosrc ppc64le x86_64)
  • kernel-default-4.12.14-95.77.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (noarch)
  • kernel-macros-4.12.14-95.77.1
  • kernel-devel-4.12.14-95.77.1
  • kernel-source-4.12.14-95.77.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (x86_64)
  • kernel-default-devel-debuginfo-4.12.14-95.77.1
• SUSE Linux Enterprise High Availability Extension 12 SP4 (ppc64le s390x x86_64)
  • ocfs2-kmp-default-4.12.14-95.77.1
  • dlm-kmp-default-4.12.14-95.77.1
  • cluster-md-kmp-default-4.12.14-95.77.1
  • cluster-md-kmp-default-debuginfo-4.12.14-95.77.1
  • kernel-default-debuginfo-4.12.14-95.77.1
  • gfs2-kmp-default-4.12.14-95.77.1
  • kernel-default-debugsource-4.12.14-95.77.1
  • gfs2-kmp-default-debuginfo-4.12.14-95.77.1
  • ocfs2-kmp-default-debuginfo-4.12.14-95.77.1
  • dlm-kmp-default-debuginfo-4.12.14-95.77.1
• SUSE Linux Enterprise High Availability Extension 12 SP4 (nosrc)
  • kernel-default-4.12.14-95.77.1
• SUSE Linux Enterprise Live Patching 12-SP4 (nosrc)
  • kernel-default-4.12.14-95.77.1
• SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64)
  • kernel-default-kgraft-devel-4.12.14-95.77.1
  • kernel-default-kgraft-4.12.14-95.77.1
  • kgraft-patch-4_12_14-95_77-default-1-6.3.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (aarch64 nosrc x86_64)
  • kernel-default-4.12.14-95.77.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (aarch64 x86_64)
  • kernel-default-debuginfo-4.12.14-95.77.1
  • kernel-syms-4.12.14-95.77.1
  • kernel-default-base-debuginfo-4.12.14-95.77.1
  • kernel-default-devel-4.12.14-95.77.1
  • kernel-default-debugsource-4.12.14-95.77.1
  • kernel-default-base-4.12.14-95.77.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (noarch)
  • kernel-macros-4.12.14-95.77.1
  • kernel-devel-4.12.14-95.77.1
  • kernel-source-4.12.14-95.77.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (x86_64)
  • kernel-default-devel-debuginfo-4.12.14-95.77.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (aarch64 ppc64le s390x x86_64 nosrc)
  • kernel-default-4.12.14-95.77.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (aarch64 ppc64le s390x x86_64)
  • kernel-default-debuginfo-4.12.14-95.77.1
  • kernel-syms-4.12.14-95.77.1
  • kernel-default-base-debuginfo-4.12.14-95.77.1
  • kernel-default-devel-4.12.14-95.77.1
  • kernel-default-debugsource-4.12.14-95.77.1
  • kernel-default-base-4.12.14-95.77.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (noarch)
  • kernel-macros-4.12.14-95.77.1
  • kernel-devel-4.12.14-95.77.1
  • kernel-source-4.12.14-95.77.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (s390x)
  • kernel-default-man-4.12.14-95.77.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (x86_64)
  • kernel-default-devel-debuginfo-4.12.14-95.77.1

References:

• https://www.suse.com/security/cve/CVE-2020-24586.html
• https://www.suse.com/security/cve/CVE-2020-24587.html
• https://www.suse.com/security/cve/CVE-2020-26139.html
• https://www.suse.com/security/cve/CVE-2020-26141.html
• https://www.suse.com/security/cve/CVE-2020-26145.html
• https://www.suse.com/security/cve/CVE-2020-26147.html
• https://www.suse.com/security/cve/CVE-2021-23133.html
• https://www.suse.com/security/cve/CVE-2021-23134.html
• https://www.suse.com/security/cve/CVE-2021-32399.html
• https://www.suse.com/security/cve/CVE-2021-33034.html
• https://www.suse.com/security/cve/CVE-2021-33200.html
• https://www.suse.com/security/cve/CVE-2021-3491.html
• https://bugzilla.suse.com/show_bug.cgi?id=1176081
• https://bugzilla.suse.com/show_bug.cgi?id=1180846
• https://bugzilla.suse.com/show_bug.cgi?id=1183947
• https://bugzilla.suse.com/show_bug.cgi?id=1184611
• https://bugzilla.suse.com/show_bug.cgi?id=1184675
• https://bugzilla.suse.com/show_bug.cgi?id=1185642
• https://bugzilla.suse.com/show_bug.cgi?id=1185677
• https://bugzilla.suse.com/show_bug.cgi?id=1185680
• https://bugzilla.suse.com/show_bug.cgi?id=1185724
• https://bugzilla.suse.com/show_bug.cgi?id=1185859
• https://bugzilla.suse.com/show_bug.cgi?id=1185860
• https://bugzilla.suse.com/show_bug.cgi?id=1185862
• https://bugzilla.suse.com/show_bug.cgi?id=1185863
• https://bugzilla.suse.com/show_bug.cgi?id=1185898
• https://bugzilla.suse.com/show_bug.cgi?id=1185899
• https://bugzilla.suse.com/show_bug.cgi?id=1185901
• https://bugzilla.suse.com/show_bug.cgi?id=1185938
• https://bugzilla.suse.com/show_bug.cgi?id=1185950
• https://bugzilla.suse.com/show_bug.cgi?id=1185987
• https://bugzilla.suse.com/show_bug.cgi?id=1186060
• https://bugzilla.suse.com/show_bug.cgi?id=1186061
• https://bugzilla.suse.com/show_bug.cgi?id=1186062
• https://bugzilla.suse.com/show_bug.cgi?id=1186111
• https://bugzilla.suse.com/show_bug.cgi?id=1186285
• https://bugzilla.suse.com/show_bug.cgi?id=1186390
• https://bugzilla.suse.com/show_bug.cgi?id=1186484
• https://bugzilla.suse.com/show_bug.cgi?id=1186498