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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0543 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 Denial of Service -- Existing Account Access Confidential Data -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-3347 CVE-2020-36158 CVE-2020-29661 CVE-2020-29660 CVE-2020-29569 CVE-2020-29568 CVE-2020-28974 CVE-2020-28915 CVE-2020-27835 CVE-2020-27825 CVE-2020-27786 CVE-2020-27777 CVE-2020-27068 CVE-2020-25669 CVE-2020-25285 CVE-2020-25211 CVE-2020-15437 CVE-2020-15436 CVE-2020-11668 CVE-2020-4788 CVE-2020-0466 CVE-2020-0465 CVE-2020-0444 CVE-2019-20934 CVE-2018-10902 Reference: ESB-2021.0534 ESB-2021.0530 ESB-2021.0529 ESB-2021.0528 Original Bulletin: https://www.suse.com/support/update/announcement/2021/suse-su-20210452-1 - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for the Linux Kernel ______________________________________________________________________________ Announcement ID: SUSE-SU-2021:0452-1 Rating: important References: #1105322 #1105323 #1139944 #1168952 #1173942 #1175306 #1176395 #1176485 #1177440 #1177666 #1178182 #1178272 #1178589 #1178886 #1179107 #1179140 #1179141 #1179204 #1179419 #1179508 #1179509 #1179601 #1179616 #1179663 #1179666 #1179745 #1179877 #1179878 #1179960 #1179961 #1180008 #1180027 #1180028 #1180029 #1180030 #1180031 #1180032 #1180052 #1180086 #1180559 #1180562 #1180815 #1181096 #1181158 #1181349 #1181553 #969755 Cross-References: CVE-2018-10902 CVE-2019-20934 CVE-2020-0444 CVE-2020-0465 CVE-2020-0466 CVE-2020-11668 CVE-2020-15436 CVE-2020-15437 CVE-2020-25211 CVE-2020-25285 CVE-2020-25669 CVE-2020-27068 CVE-2020-27777 CVE-2020-27786 CVE-2020-27825 CVE-2020-27835 CVE-2020-28915 CVE-2020-28974 CVE-2020-29568 CVE-2020-29569 CVE-2020-29660 CVE-2020-29661 CVE-2020-36158 CVE-2020-4788 CVE-2021-3347 Affected Products: SUSE OpenStack Cloud Crowbar 8 SUSE OpenStack Cloud 8 SUSE Linux Enterprise Server for SAP 12-SP3 SUSE Linux Enterprise Server 12-SP3-LTSS SUSE Linux Enterprise Server 12-SP3-BCL SUSE Linux Enterprise High Availability 12-SP3 SUSE Enterprise Storage 5 HPE Helion Openstack 8 ______________________________________________________________________________ An update that solves 25 vulnerabilities and has 22 fixes is now available. Description: The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: 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-2020-15436: 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-2020-27777: 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-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc# 1178182). 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-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485). o CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663). o CVE-2018-10902: It was found that the raw midi kernel driver did not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation (bnc# 1105322). The following non-security bugs were fixed: o cifs: do not revalidate mountpoint dentries (bsc#1177440). o cifs: fix potential use-after-free in cifs_echo_request() (bsc#1139944). o cifs: ignore revalidate failures in case of process gets signaled (bsc# 1177440). 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: Avoid freeing an active timer (bsc#969755). o futex: Avoid violating the 10th rule of futex (bsc#969755). o futex: Change locking rules (bsc#969755). o futex: Do not enable IRQs unconditionally in put_pi_state() (bsc#969755). o futex: Drop hb->lock before enqueueing on the rtmutex (bsc#969755). o futex: Fix incorrect should_fail_futex() handling (bsc#969755). o futex: Fix more put_pi_state() vs. exit_pi_state_list() races (bsc#969755). o futex: Fix OWNER_DEAD fixup (bsc#969755). o futex: Fix pi_state->owner serialization (bsc#969755). o futex: Fix small (and harmless looking) inconsistencies (bsc#969755). o futex: Futex_unlock_pi() determinism (bsc#969755). o futex: Handle early deadlock return correctly (bsc#969755). o futex: Handle transient "ownerless" rtmutex state correctly (bsc#969755). o futex: Pull rt_mutex_futex_unlock() out from under hb->lock (bsc#969755). o futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock() (bsc#969755). o futex: Rework inconsistent rt_mutex/futex_q state (bsc#969755). o futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock() (bsc#969755). o futex,rt_mutex: Introduce rt_mutex_init_waiter() (bsc#969755). o futex,rt_mutex: Provide futex specific rt_mutex API (bsc#969755). o futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock() (bsc#969755). o HID: Fix slab-out-of-bounds read in hid_field_extract (bsc#1180052). o IB/hfi1: Clean up hfi1_user_exp_rcv_setup function (bsc#1179878). o IB/hfi1: Clean up pin_vector_pages() function (bsc#1179878). o IB/hfi1: Fix the bail out code in pin_vector_pages() function (bsc# 1179878). o IB/hfi1: Move structure definitions from user_exp_rcv.c to user_exp_rcv.h (bsc#1179878). o IB/hfi1: Name function prototype parameters (bsc#1179878). o IB/hfi1: Use filedata rather than filepointer (bsc#1179878). o locking/futex: Allow low-level atomic operations to return -EAGAIN (bsc# 969755). o mm/userfaultfd: do not access vma->vm_mm after calling handle_userfault() (bsc#1179204). o scsi: iscsi: Fix a potential deadlock in the timeout handler (bsc#1178272). o Use r3 instead of r13 for l1d fallback flush in do_uaccess_fush (bsc# 1181096 ltc#190883). o video: hyperv_fb: include vmalloc.h (bsc#1175306). 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 OpenStack Cloud Crowbar 8: zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2021-452=1 o SUSE OpenStack Cloud 8: zypper in -t patch SUSE-OpenStack-Cloud-8-2021-452=1 o SUSE Linux Enterprise Server for SAP 12-SP3: zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-452=1 o SUSE Linux Enterprise Server 12-SP3-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-452=1 o SUSE Linux Enterprise Server 12-SP3-BCL: zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2021-452=1 o SUSE Linux Enterprise High Availability 12-SP3: zypper in -t patch SUSE-SLE-HA-12-SP3-2021-452=1 o SUSE Enterprise Storage 5: zypper in -t patch SUSE-Storage-5-2021-452=1 o HPE Helion Openstack 8: zypper in -t patch HPE-Helion-OpenStack-8-2021-452=1 Package List: o SUSE OpenStack Cloud Crowbar 8 (noarch): kernel-devel-4.4.180-94.138.1 kernel-macros-4.4.180-94.138.1 kernel-source-4.4.180-94.138.1 o SUSE OpenStack Cloud Crowbar 8 (x86_64): kernel-default-4.4.180-94.138.1 kernel-default-base-4.4.180-94.138.1 kernel-default-base-debuginfo-4.4.180-94.138.1 kernel-default-debuginfo-4.4.180-94.138.1 kernel-default-debugsource-4.4.180-94.138.1 kernel-default-devel-4.4.180-94.138.1 kernel-default-kgraft-4.4.180-94.138.1 kernel-syms-4.4.180-94.138.1 kgraft-patch-4_4_180-94_138-default-1-4.3.1 kgraft-patch-4_4_180-94_138-default-debuginfo-1-4.3.1 o SUSE OpenStack Cloud 8 (noarch): kernel-devel-4.4.180-94.138.1 kernel-macros-4.4.180-94.138.1 kernel-source-4.4.180-94.138.1 o SUSE OpenStack Cloud 8 (x86_64): kernel-default-4.4.180-94.138.1 kernel-default-base-4.4.180-94.138.1 kernel-default-base-debuginfo-4.4.180-94.138.1 kernel-default-debuginfo-4.4.180-94.138.1 kernel-default-debugsource-4.4.180-94.138.1 kernel-default-devel-4.4.180-94.138.1 kernel-default-kgraft-4.4.180-94.138.1 kernel-syms-4.4.180-94.138.1 kgraft-patch-4_4_180-94_138-default-1-4.3.1 kgraft-patch-4_4_180-94_138-default-debuginfo-1-4.3.1 o SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64): kernel-default-4.4.180-94.138.1 kernel-default-base-4.4.180-94.138.1 kernel-default-base-debuginfo-4.4.180-94.138.1 kernel-default-debuginfo-4.4.180-94.138.1 kernel-default-debugsource-4.4.180-94.138.1 kernel-default-devel-4.4.180-94.138.1 kernel-default-kgraft-4.4.180-94.138.1 kernel-syms-4.4.180-94.138.1 kgraft-patch-4_4_180-94_138-default-1-4.3.1 kgraft-patch-4_4_180-94_138-default-debuginfo-1-4.3.1 o SUSE Linux Enterprise Server for SAP 12-SP3 (noarch): kernel-devel-4.4.180-94.138.1 kernel-macros-4.4.180-94.138.1 kernel-source-4.4.180-94.138.1 o SUSE Linux Enterprise Server 12-SP3-LTSS (aarch64 ppc64le s390x x86_64): kernel-default-4.4.180-94.138.1 kernel-default-base-4.4.180-94.138.1 kernel-default-base-debuginfo-4.4.180-94.138.1 kernel-default-debuginfo-4.4.180-94.138.1 kernel-default-debugsource-4.4.180-94.138.1 kernel-default-devel-4.4.180-94.138.1 kernel-syms-4.4.180-94.138.1 o SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64): kernel-default-kgraft-4.4.180-94.138.1 kgraft-patch-4_4_180-94_138-default-1-4.3.1 kgraft-patch-4_4_180-94_138-default-debuginfo-1-4.3.1 o SUSE Linux Enterprise Server 12-SP3-LTSS (noarch): kernel-devel-4.4.180-94.138.1 kernel-macros-4.4.180-94.138.1 kernel-source-4.4.180-94.138.1 o SUSE Linux Enterprise Server 12-SP3-LTSS (s390x): kernel-default-man-4.4.180-94.138.1 o SUSE Linux Enterprise Server 12-SP3-BCL (noarch): kernel-devel-4.4.180-94.138.1 kernel-macros-4.4.180-94.138.1 kernel-source-4.4.180-94.138.1 o SUSE Linux Enterprise Server 12-SP3-BCL (x86_64): kernel-default-4.4.180-94.138.1 kernel-default-base-4.4.180-94.138.1 kernel-default-base-debuginfo-4.4.180-94.138.1 kernel-default-debuginfo-4.4.180-94.138.1 kernel-default-debugsource-4.4.180-94.138.1 kernel-default-devel-4.4.180-94.138.1 kernel-syms-4.4.180-94.138.1 o SUSE Linux Enterprise High Availability 12-SP3 (ppc64le s390x x86_64): cluster-md-kmp-default-4.4.180-94.138.1 cluster-md-kmp-default-debuginfo-4.4.180-94.138.1 dlm-kmp-default-4.4.180-94.138.1 dlm-kmp-default-debuginfo-4.4.180-94.138.1 gfs2-kmp-default-4.4.180-94.138.1 gfs2-kmp-default-debuginfo-4.4.180-94.138.1 kernel-default-debuginfo-4.4.180-94.138.1 kernel-default-debugsource-4.4.180-94.138.1 ocfs2-kmp-default-4.4.180-94.138.1 ocfs2-kmp-default-debuginfo-4.4.180-94.138.1 o SUSE Enterprise Storage 5 (aarch64 x86_64): kernel-default-4.4.180-94.138.1 kernel-default-base-4.4.180-94.138.1 kernel-default-base-debuginfo-4.4.180-94.138.1 kernel-default-debuginfo-4.4.180-94.138.1 kernel-default-debugsource-4.4.180-94.138.1 kernel-default-devel-4.4.180-94.138.1 kernel-syms-4.4.180-94.138.1 o SUSE Enterprise Storage 5 (noarch): kernel-devel-4.4.180-94.138.1 kernel-macros-4.4.180-94.138.1 kernel-source-4.4.180-94.138.1 o SUSE Enterprise Storage 5 (x86_64): kernel-default-kgraft-4.4.180-94.138.1 kgraft-patch-4_4_180-94_138-default-1-4.3.1 kgraft-patch-4_4_180-94_138-default-debuginfo-1-4.3.1 o HPE Helion Openstack 8 (x86_64): kernel-default-4.4.180-94.138.1 kernel-default-base-4.4.180-94.138.1 kernel-default-base-debuginfo-4.4.180-94.138.1 kernel-default-debuginfo-4.4.180-94.138.1 kernel-default-debugsource-4.4.180-94.138.1 kernel-default-devel-4.4.180-94.138.1 kernel-default-kgraft-4.4.180-94.138.1 kernel-syms-4.4.180-94.138.1 kgraft-patch-4_4_180-94_138-default-1-4.3.1 kgraft-patch-4_4_180-94_138-default-debuginfo-1-4.3.1 o HPE Helion Openstack 8 (noarch): kernel-devel-4.4.180-94.138.1 kernel-macros-4.4.180-94.138.1 kernel-source-4.4.180-94.138.1 References: o https://www.suse.com/security/cve/CVE-2018-10902.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-2020-11668.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-2020-25285.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-2020-28915.html o https://www.suse.com/security/cve/CVE-2020-28974.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://bugzilla.suse.com/1105322 o https://bugzilla.suse.com/1105323 o https://bugzilla.suse.com/1139944 o https://bugzilla.suse.com/1168952 o https://bugzilla.suse.com/1173942 o https://bugzilla.suse.com/1175306 o https://bugzilla.suse.com/1176395 o https://bugzilla.suse.com/1176485 o https://bugzilla.suse.com/1177440 o https://bugzilla.suse.com/1177666 o https://bugzilla.suse.com/1178182 o https://bugzilla.suse.com/1178272 o https://bugzilla.suse.com/1178589 o https://bugzilla.suse.com/1178886 o https://bugzilla.suse.com/1179107 o https://bugzilla.suse.com/1179140 o https://bugzilla.suse.com/1179141 o https://bugzilla.suse.com/1179204 o https://bugzilla.suse.com/1179419 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/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/1180815 o https://bugzilla.suse.com/1181096 o https://bugzilla.suse.com/1181158 o https://bugzilla.suse.com/1181349 o https://bugzilla.suse.com/1181553 o https://bugzilla.suse.com/969755 - --------------------------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 iQIVAwUBYCnCQeNLKJtyKPYoAQjyoQ/+JsVO3pX3am8kYrQOPoUcxOOQGsYxPOb9 Uw9rroT0gDjrpbl0/lilLfsmqu/Hdkzs+uJwZMxV9T8JbA+2xQW7//IbNHgL4pbf hv0jLAuPAFAxsjezwqnPiFcAAlpCA9chYRH2zyKQCq/cDPdi5KL4ihWB54/J6uR8 0gaFdxQAUveSCRCBAVaRZFUxt5JLw+3rOg9IJADBZSEOocGLMnoSfv/yTDaUH1Qf lkcBGHd4Gvn1U1x2yYpF0BxFh9WfxKZhPF9DfSO/lLqYxcPfPHOtIyC4lP9r974b ezx8kWn4+2/ZiBRo226goyFR0naBFcahdvzZoG3/WAKJoDofzzKS8F4IfWVVHWVy LHhclRgbt3+yzcJCX7ESyIWCFncuGRVsi2IGEdGiCGMC2ellqz5SH5mB8M5cYfRV Gdju0QVjbay+hJKCR32IgZZB4Uauoqmk0GtJ8vTnTc5LxZpbKRSzu5Urg/mIA+BA oG47CZP0Gh167abmzXPY6rhKZJyuGDc4Sa/ZnrZ7A35aaYIcBtmLFB+urXjfDlH8 wyta24HQ3y/Xim1AZR6TjZJYC23POv+auRYA/CfdF2bkqdou6jnrVEs5oKD1ivEV CDOpdG0UP1YG5LxCKBvcylKEWKe0a8W/1WXmaMO4ned7TxNMUaa3iV119d2oJw1u 7ldpgDtOXsg= =1eMT -----END PGP SIGNATURE-----