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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0551 Security update for the Linux Kernel 15 February 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux Kernel Publisher: SUSE Operating System: SUSE Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Root Compromise -- Existing Account Access Privileged Data -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-3348 CVE-2021-3347 CVE-2020-36158 CVE-2020-29661 CVE-2020-29660 CVE-2020-29569 CVE-2020-29568 CVE-2020-29371 CVE-2020-28974 CVE-2020-28915 CVE-2020-28374 CVE-2020-27835 CVE-2020-27825 CVE-2020-27786 CVE-2020-27777 CVE-2020-27068 CVE-2020-25669 CVE-2020-25639 CVE-2020-25211 CVE-2020-15437 CVE-2020-15436 CVE-2020-11668 CVE-2020-10781 CVE-2020-4788 CVE-2020-0466 CVE-2020-0465 CVE-2020-0444 CVE-2019-20934 CVE-2019-20806 Reference: ESB-2021.0543 ESB-2021.0527 ESB-2021.0501 Original Bulletin: https://www.suse.com/support/update/announcement/2021/suse-su-20210438-1 - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for the Linux Kernel ______________________________________________________________________________ Announcement ID: SUSE-SU-2021:0438-1 Rating: important References: #1144912 #1149032 #1163840 #1168952 #1172199 #1173074 #1173942 #1176395 #1176846 #1177666 #1178182 #1178272 #1178372 #1178589 #1178590 #1178684 #1178886 #1179071 #1179107 #1179140 #1179141 #1179419 #1179429 #1179508 #1179509 #1179601 #1179616 #1179663 #1179666 #1179745 #1179877 #1179878 #1179895 #1179960 #1179961 #1180008 #1180027 #1180028 #1180029 #1180030 #1180031 #1180032 #1180052 #1180086 #1180559 #1180562 #1180676 #1181001 #1181158 #1181349 #1181504 #1181553 #1181645 Cross-References: CVE-2019-20806 CVE-2019-20934 CVE-2020-0444 CVE-2020-0465 CVE-2020-0466 CVE-2020-10781 CVE-2020-11668 CVE-2020-15436 CVE-2020-15437 CVE-2020-25211 CVE-2020-25639 CVE-2020-25669 CVE-2020-27068 CVE-2020-27777 CVE-2020-27786 CVE-2020-27825 CVE-2020-27835 CVE-2020-28374 CVE-2020-28915 CVE-2020-28974 CVE-2020-29371 CVE-2020-29568 CVE-2020-29569 CVE-2020-29660 CVE-2020-29661 CVE-2020-36158 CVE-2020-4788 CVE-2021-3347 CVE-2021-3348 Affected Products: SUSE Linux Enterprise Server for SAP 15 SUSE Linux Enterprise Server 15-LTSS SUSE Linux Enterprise Module for Live Patching 15 SUSE Linux Enterprise High Performance Computing 15-LTSS SUSE Linux Enterprise High Performance Computing 15-ESPOS SUSE Linux Enterprise High Availability 15 ______________________________________________________________________________ An update that solves 29 vulnerabilities and has 24 fixes is now available. Description: The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: o CVE-2021-3348: Fixed a use-after-free in nbd_add_socket that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup (bnc#1181504). o CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel (bnc# 1181349). o CVE-2020-25211: Fixed a buffer overflow in ctnetlink_parse_tuple_filter() which could be triggered by a local attackers by injecting conntrack netlink configuration (bnc#1176395). o CVE-2020-27835: A use-after-free in the infiniband hfi1 driver was found, specifically in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878). o CVE-2020-29569: Fixed a potential privilege escalation and information leaks related to the PV block backend, as used by Xen (bnc#1179509). o CVE-2020-29568: Fixed a denial of service issue, related to processing watch events (bnc#1179508). o CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027). o CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029). o CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031). o CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666). o CVE-2020-10781: A flaw was found in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/ hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable (bnc#1173074). o CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141). o CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086). o CVE-2020-25639: Fixed a NULL pointer dereference via nouveau ioctl (bnc# 1176846). o CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107). o CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601). o CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc #1179960). o CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745). o CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745). o CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589). o CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886). o CVE-2020-28374: Fixed a Linux SCSI target issue (bsc#1178372). o CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc# 1178182). o CVE-2020-29371: An issue was discovered in romfs_dev_read in fs/romfs/ storage.c where uninitialized memory leaks to userspace (bnc#1179429). o CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140). o CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559). o CVE-2020-11668: Fixed the mishandling of invalid descriptors in the Xirlink camera USB driver (bnc#1168952). o CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663). o CVE-2019-20806: Fixed a NULL pointer dereference in tw5864_handle_frame() in drivers/media/pci/tw5864/tw5864-video.c, which may cause denial of service (bnc#1172199). The following non-security bugs were fixed: o blk-mq: avoid sysfs buffer overflow with too many CPU cores (bsc#1163840 bsc#1179071). o blk-mq: make sure that line break can be printed (bsc#1163840 bsc#1179071). o epoll: Keep a reference on files added to the check list (bsc#1180031). o fix regression in "epoll: Keep a reference on files added to the check list" (bsc#1180031, git-fixes). o futex: Do not enable IRQs unconditionally in put_pi_state() (bsc#1149032). o futex: Ensure the correct return value from futex_lock_pi() (bsc#1181349 bsc#1149032). o futex: Fix incorrect should_fail_futex() handling (bsc#1181349). o futex: Handle faults correctly for PI futexes (bsc#1181349 bsc#1149032). o futex: Provide and use pi_state_update_owner() (bsc#1181349 bsc#1149032). o futex: Replace pointless printk in fixup_owner() (bsc#1181349 bsc#1149032). o futex: Simplify fixup_pi_state_owner() (bsc#1181349 bsc#1149032). o futex: Use pi_state_update_owner() in put_pi_state() (bsc#1181349 bsc# 1149032). o HID: Fix slab-out-of-bounds read in hid_field_extract (bsc#1180052). o iommu/vt-d: Do not dereference iommu_device if IOMMU_API is not built (bsc# 1181001, jsc#ECO-3191). o iommu/vt-d: Gracefully handle DMAR units with no supported address widths (bsc#1181001, jsc#ECO-3191). o kABI: Fix kABI for extended APIC-ID support (bsc#1181001, jsc#ECO-3191). o locking/futex: Allow low-level atomic operations to return -EAGAIN (bsc# 1149032). o nbd: Fix memory leak in nbd_add_socket (bsc#1181504). o net/x25: prevent a couple of overflows (bsc#1178590). o rtmutex: Remove unused argument from rt_mutex_proxy_unlock() (bsc#1181349 bsc#1149032). o s390/dasd: fix hanging device offline processing (bsc#1144912). o scsi: iscsi: Fix a potential deadlock in the timeout handler (bsc#1178272). o x86/apic: Fix x2apic enablement without interrupt remapping (bsc#1181001, jsc#ECO-3191). o x86/apic: Support 15 bits of APIC ID in IOAPIC/MSI where available (bsc# 1181001, jsc#ECO-3191). o x86/ioapic: Handle Extended Destination ID field in RTE (bsc#1181001, jsc# ECO-3191). o x86/kvm: Add KVM_FEATURE_MSI_EXT_DEST_ID (bsc#1181001, jsc#ECO-3191). o x86/kvm: Reserve KVM_FEATURE_MSI_EXT_DEST_ID (bsc#1181001, jsc#ECO-3191). o x86/msi: Only use high bits of MSI address for DMAR unit (bsc#1181001, jsc# ECO-3191). o x86/tracing: Introduce a static key for exception tracing (bsc#1179895). o x86/traps: Simplify pagefault tracing logic (bsc#1179895). Special Instructions and Notes: Please reboot the system after installing this update. 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: o SUSE Linux Enterprise Server for SAP 15: zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-438=1 o SUSE Linux Enterprise Server 15-LTSS: zypper in -t patch SUSE-SLE-Product-SLES-15-2021-438=1 o SUSE Linux Enterprise Module for Live Patching 15: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2021-438=1 o SUSE Linux Enterprise High Performance Computing 15-LTSS: zypper in -t patch SUSE-SLE-Product-HPC-15-2021-438=1 o SUSE Linux Enterprise High Performance Computing 15-ESPOS: zypper in -t patch SUSE-SLE-Product-HPC-15-2021-438=1 o SUSE Linux Enterprise High Availability 15: zypper in -t patch SUSE-SLE-Product-HA-15-2021-438=1 Package List: o SUSE Linux Enterprise Server for SAP 15 (ppc64le x86_64): kernel-default-4.12.14-150.66.1 kernel-default-base-4.12.14-150.66.1 kernel-default-debuginfo-4.12.14-150.66.1 kernel-default-debugsource-4.12.14-150.66.1 kernel-default-devel-4.12.14-150.66.1 kernel-default-devel-debuginfo-4.12.14-150.66.1 kernel-obs-build-4.12.14-150.66.1 kernel-obs-build-debugsource-4.12.14-150.66.1 kernel-syms-4.12.14-150.66.1 kernel-vanilla-base-4.12.14-150.66.1 kernel-vanilla-base-debuginfo-4.12.14-150.66.1 kernel-vanilla-debuginfo-4.12.14-150.66.1 kernel-vanilla-debugsource-4.12.14-150.66.1 reiserfs-kmp-default-4.12.14-150.66.1 reiserfs-kmp-default-debuginfo-4.12.14-150.66.1 o SUSE Linux Enterprise Server for SAP 15 (noarch): kernel-devel-4.12.14-150.66.1 kernel-docs-4.12.14-150.66.1 kernel-macros-4.12.14-150.66.1 kernel-source-4.12.14-150.66.1 o SUSE Linux Enterprise Server 15-LTSS (aarch64 s390x): kernel-default-4.12.14-150.66.1 kernel-default-base-4.12.14-150.66.1 kernel-default-debuginfo-4.12.14-150.66.1 kernel-default-debugsource-4.12.14-150.66.1 kernel-default-devel-4.12.14-150.66.1 kernel-default-devel-debuginfo-4.12.14-150.66.1 kernel-obs-build-4.12.14-150.66.1 kernel-obs-build-debugsource-4.12.14-150.66.1 kernel-syms-4.12.14-150.66.1 kernel-vanilla-base-4.12.14-150.66.1 kernel-vanilla-base-debuginfo-4.12.14-150.66.1 kernel-vanilla-debuginfo-4.12.14-150.66.1 kernel-vanilla-debugsource-4.12.14-150.66.1 reiserfs-kmp-default-4.12.14-150.66.1 reiserfs-kmp-default-debuginfo-4.12.14-150.66.1 o SUSE Linux Enterprise Server 15-LTSS (noarch): kernel-devel-4.12.14-150.66.1 kernel-docs-4.12.14-150.66.1 kernel-macros-4.12.14-150.66.1 kernel-source-4.12.14-150.66.1 o SUSE Linux Enterprise Server 15-LTSS (s390x): kernel-default-man-4.12.14-150.66.1 kernel-zfcpdump-debuginfo-4.12.14-150.66.1 kernel-zfcpdump-debugsource-4.12.14-150.66.1 o SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64): kernel-default-debuginfo-4.12.14-150.66.1 kernel-default-debugsource-4.12.14-150.66.1 kernel-default-livepatch-4.12.14-150.66.1 kernel-livepatch-4_12_14-150_66-default-1-1.3.1 kernel-livepatch-4_12_14-150_66-default-debuginfo-1-1.3.1 o SUSE Linux Enterprise High Performance Computing 15-LTSS (aarch64 x86_64): kernel-default-4.12.14-150.66.1 kernel-default-base-4.12.14-150.66.1 kernel-default-debuginfo-4.12.14-150.66.1 kernel-default-debugsource-4.12.14-150.66.1 kernel-default-devel-4.12.14-150.66.1 kernel-default-devel-debuginfo-4.12.14-150.66.1 kernel-obs-build-4.12.14-150.66.1 kernel-obs-build-debugsource-4.12.14-150.66.1 kernel-syms-4.12.14-150.66.1 kernel-vanilla-base-4.12.14-150.66.1 kernel-vanilla-base-debuginfo-4.12.14-150.66.1 kernel-vanilla-debuginfo-4.12.14-150.66.1 kernel-vanilla-debugsource-4.12.14-150.66.1 o SUSE Linux Enterprise High Performance Computing 15-LTSS (noarch): kernel-devel-4.12.14-150.66.1 kernel-docs-4.12.14-150.66.1 kernel-macros-4.12.14-150.66.1 kernel-source-4.12.14-150.66.1 o SUSE Linux Enterprise High Performance Computing 15-ESPOS (aarch64 x86_64): kernel-default-4.12.14-150.66.1 kernel-default-base-4.12.14-150.66.1 kernel-default-debuginfo-4.12.14-150.66.1 kernel-default-debugsource-4.12.14-150.66.1 kernel-default-devel-4.12.14-150.66.1 kernel-default-devel-debuginfo-4.12.14-150.66.1 kernel-obs-build-4.12.14-150.66.1 kernel-obs-build-debugsource-4.12.14-150.66.1 kernel-syms-4.12.14-150.66.1 kernel-vanilla-base-4.12.14-150.66.1 kernel-vanilla-base-debuginfo-4.12.14-150.66.1 kernel-vanilla-debuginfo-4.12.14-150.66.1 kernel-vanilla-debugsource-4.12.14-150.66.1 o SUSE Linux Enterprise High Performance Computing 15-ESPOS (noarch): kernel-devel-4.12.14-150.66.1 kernel-docs-4.12.14-150.66.1 kernel-macros-4.12.14-150.66.1 kernel-source-4.12.14-150.66.1 o SUSE Linux Enterprise High Availability 15 (aarch64 ppc64le s390x x86_64): cluster-md-kmp-default-4.12.14-150.66.1 cluster-md-kmp-default-debuginfo-4.12.14-150.66.1 dlm-kmp-default-4.12.14-150.66.1 dlm-kmp-default-debuginfo-4.12.14-150.66.1 gfs2-kmp-default-4.12.14-150.66.1 gfs2-kmp-default-debuginfo-4.12.14-150.66.1 kernel-default-debuginfo-4.12.14-150.66.1 kernel-default-debugsource-4.12.14-150.66.1 ocfs2-kmp-default-4.12.14-150.66.1 ocfs2-kmp-default-debuginfo-4.12.14-150.66.1 References: o https://www.suse.com/security/cve/CVE-2019-20806.html o https://www.suse.com/security/cve/CVE-2019-20934.html o https://www.suse.com/security/cve/CVE-2020-0444.html o https://www.suse.com/security/cve/CVE-2020-0465.html o https://www.suse.com/security/cve/CVE-2020-0466.html o https://www.suse.com/security/cve/CVE-2020-10781.html o https://www.suse.com/security/cve/CVE-2020-11668.html o https://www.suse.com/security/cve/CVE-2020-15436.html o https://www.suse.com/security/cve/CVE-2020-15437.html o https://www.suse.com/security/cve/CVE-2020-25211.html o https://www.suse.com/security/cve/CVE-2020-25639.html o https://www.suse.com/security/cve/CVE-2020-25669.html o https://www.suse.com/security/cve/CVE-2020-27068.html o https://www.suse.com/security/cve/CVE-2020-27777.html o https://www.suse.com/security/cve/CVE-2020-27786.html o https://www.suse.com/security/cve/CVE-2020-27825.html o https://www.suse.com/security/cve/CVE-2020-27835.html o https://www.suse.com/security/cve/CVE-2020-28374.html o https://www.suse.com/security/cve/CVE-2020-28915.html o https://www.suse.com/security/cve/CVE-2020-28974.html o https://www.suse.com/security/cve/CVE-2020-29371.html o https://www.suse.com/security/cve/CVE-2020-29568.html o https://www.suse.com/security/cve/CVE-2020-29569.html o https://www.suse.com/security/cve/CVE-2020-29660.html o https://www.suse.com/security/cve/CVE-2020-29661.html o https://www.suse.com/security/cve/CVE-2020-36158.html o https://www.suse.com/security/cve/CVE-2020-4788.html o https://www.suse.com/security/cve/CVE-2021-3347.html o https://www.suse.com/security/cve/CVE-2021-3348.html o https://bugzilla.suse.com/1144912 o https://bugzilla.suse.com/1149032 o https://bugzilla.suse.com/1163840 o https://bugzilla.suse.com/1168952 o https://bugzilla.suse.com/1172199 o https://bugzilla.suse.com/1173074 o https://bugzilla.suse.com/1173942 o https://bugzilla.suse.com/1176395 o https://bugzilla.suse.com/1176846 o https://bugzilla.suse.com/1177666 o https://bugzilla.suse.com/1178182 o https://bugzilla.suse.com/1178272 o https://bugzilla.suse.com/1178372 o https://bugzilla.suse.com/1178589 o https://bugzilla.suse.com/1178590 o https://bugzilla.suse.com/1178684 o https://bugzilla.suse.com/1178886 o https://bugzilla.suse.com/1179071 o https://bugzilla.suse.com/1179107 o https://bugzilla.suse.com/1179140 o https://bugzilla.suse.com/1179141 o https://bugzilla.suse.com/1179419 o https://bugzilla.suse.com/1179429 o https://bugzilla.suse.com/1179508 o https://bugzilla.suse.com/1179509 o https://bugzilla.suse.com/1179601 o https://bugzilla.suse.com/1179616 o https://bugzilla.suse.com/1179663 o https://bugzilla.suse.com/1179666 o https://bugzilla.suse.com/1179745 o https://bugzilla.suse.com/1179877 o https://bugzilla.suse.com/1179878 o https://bugzilla.suse.com/1179895 o https://bugzilla.suse.com/1179960 o https://bugzilla.suse.com/1179961 o https://bugzilla.suse.com/1180008 o https://bugzilla.suse.com/1180027 o https://bugzilla.suse.com/1180028 o https://bugzilla.suse.com/1180029 o https://bugzilla.suse.com/1180030 o https://bugzilla.suse.com/1180031 o https://bugzilla.suse.com/1180032 o https://bugzilla.suse.com/1180052 o https://bugzilla.suse.com/1180086 o https://bugzilla.suse.com/1180559 o https://bugzilla.suse.com/1180562 o https://bugzilla.suse.com/1180676 o https://bugzilla.suse.com/1181001 o https://bugzilla.suse.com/1181158 o https://bugzilla.suse.com/1181349 o https://bugzilla.suse.com/1181504 o https://bugzilla.suse.com/1181553 o https://bugzilla.suse.com/1181645 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYCnZfeNLKJtyKPYoAQjWPhAAiAc4nD5VSWLUbK8V4g1JfqoeeYSM8SLo JXAldi1/ouB3B1R/U75Vp3+kLkNyMEBzAmqZsHpGSVv+17HPB1lgiSnqJOSHLgDx AgS4v44wo5MnDHZP0FAmj3FCePJcVqot4U7e2RhfrYfNviw6rRTvEXRm1gvXJGqA 2myruyAiZ0ls0Gp9/UG3yRtTn9twRHaH8ExYTl+p4Ws9CShADFUNcjc+17RAYT4I NP/m3kmS1zwcOqjnBusMtf+t82TwF7BEFU66lumVGFvHxrBw3RxsQpcP359Ic8jC SwDrQBLPV+6KGZXAKlD0xiazIHX6e+GB171e4UxKut2i76ziXCVwHqbnScA3SGhT BlnWNK1Qb08YCxgsGMpuh9oSbV4eZN6gkXqZJ+KQtkghVx3/TrZjTOZO0rhn8IZg IWVQK6f9E2+1SauKw3JLZjQxPt9NMIeKfWg+P1dKL80SpdRuCrSkPtuUKuDN3izb HGczMrEWYip5G/swOcyF/Oz6M+NMJ9tDDwSVCyoT69/Z/opbwHHeej5cpmXIinAi ehKeWk01kFt081ZZmV+UKrVOAP7bcf8w8y98fZZi09poiMpmIJhCb9AW1qyQSbUA KQ5BOb1fc5pJ7EfTw1o1LZRVR5NQeEs4T0ZDKzzD7pLeiMBNDq0Tynh1ookTr+b5 XrCpHzspcqw= =NjZu -----END PGP SIGNATURE-----