SUSE-SU-2021:0452-1: kernel-default&distro=HPE Helion OpenStack 8 SUSE Linux Enterprise

Vulnerability summary

SUSE-SU-2021:0452-1 is a vulnerability in kernel-default&distro=HPE Helion OpenStack 8 SUSE Linux Enterprise with no CVSS score yet.

Timeline

1. 12-02-2021
   PublishedVulnerability first disclosed.
2. 02-05-2025
   Last modifiedVulnerability information updated.

Description

Security update for the Linux Kernel The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - 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). - 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). - 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). - CVE-2020-29569: Fixed a potential privilege escalation and information leaks related to the PV block backend, as used by Xen (bnc#1179509). - CVE-2020-29568: Fixed a denial of service issue, related to processing watch events (bnc#1179508). - CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027). - CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029). - 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). - 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). - 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). - 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). - 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). - CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601). - CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960). - CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745). - CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745). - 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). - 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). - CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182). - CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140). - CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559). - CVE-2020-11668: Fixed the mishandling of invalid descriptors in the Xirlink camera USB driver (bnc#1168952). - CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485). - CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663). - 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: - cifs: do not revalidate mountpoint dentries (bsc#1177440). - cifs: fix potential use-after-free in cifs_echo_request() (bsc#1139944). - cifs: ignore revalidate failures in case of process gets signaled (bsc#1177440). - epoll: Keep a reference on files added to the check list (bsc#1180031). - fix regression in 'epoll: Keep a reference on files added to the check list' (bsc#1180031, git-fixes). - futex: Avoid freeing an active timer (bsc#969755). - futex: Avoid violating the 10th rule of futex (bsc#969755). - futex: Change locking rules (bsc#969755). - futex: Do not enable IRQs unconditionally in put_pi_state() (bsc#969755). - futex: Drop hb->lock before enqueueing on the rtmutex (bsc#969755). - futex: Fix incorrect should_fail_futex() handling (bsc#969755). - futex: Fix more put_pi_state() vs. exit_pi_state_list() races (bsc#969755). - futex: Fix OWNER_DEAD fixup (bsc#969755). - futex: Fix pi_state->owner serialization (bsc#969755). - futex: Fix small (and harmless looking) inconsistencies (bsc#969755). - futex: Futex_unlock_pi() determinism (bsc#969755). - futex: Handle early deadlock return correctly (bsc#969755). - futex: Handle transient 'ownerless' rtmutex state correctly (bsc#969755). - futex: Pull rt_mutex_futex_unlock() out from under hb->lock (bsc#969755). - futex: Rework futex_lock_pi() to use rt_mutex_*_proxy_lock() (bsc#969755). - futex: Rework inconsistent rt_mutex/futex_q state (bsc#969755). - futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock() (bsc#969755). - futex,rt_mutex: Introduce rt_mutex_init_waiter() (bsc#969755). - futex,rt_mutex: Provide futex specific rt_mutex API (bsc#969755). - futex,rt_mutex: Restructure rt_mutex_finish_proxy_lock() (bsc#969755). - HID: Fix slab-out-of-bounds read in hid_field_extract (bsc#1180052). - IB/hfi1: Clean up hfi1_user_exp_rcv_setup function (bsc#1179878). - IB/hfi1: Clean up pin_vector_pages() function (bsc#1179878). - IB/hfi1: Fix the bail out code in pin_vector_pages() function (bsc#1179878). - IB/hfi1: Move structure definitions from user_exp_rcv.c to user_exp_rcv.h (bsc#1179878). - IB/hfi1: Name function prototype parameters (bsc#1179878). - IB/hfi1: Use filedata rather than filepointer (bsc#1179878). - locking/futex: Allow low-level atomic operations to return -EAGAIN (bsc#969755). - mm/userfaultfd: do not access vma->vm_mm after calling handle_userfault() (bsc#1179204). - scsi: iscsi: Fix a potential deadlock in the timeout handler (bsc#1178272). - Use r3 instead of r13 for l1d fallback flush in do_uaccess_fush (bsc#1181096 ltc#190883). - video: hyperv_fb: include vmalloc.h (bsc#1175306).

No weakness data has been published for this record.