SUSE-SU-2021:2451-1

Описание

The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to obtain full root privileges. (bsc#1188062)
• CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol which allows for local privilege escalation. (bsc#1187215)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (bsc#1187050)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bsc#1186463)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)
• CVE-2021-32399: Fixed a race condition in net/bluetooth/hci_request.c for removal of the HCI controller. (bsc#1184611)
• CVE-2021-33034: Fixed an issue in net/bluetooth/hci_event.c where a use-after-free leads to writing an arbitrary value. (bsc#1186111)
• CVE-2020-26139: Fixed a bug that allows an Access Point (AP) to forward EAPOL frames to other clients even though the sender has not yet successfully authenticated. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and made it easier to exploit other vulnerabilities in connected clients. (bsc#1186062)
• CVE-2021-23134: Fixed a use After Free vulnerability in nfc sockets which allows local attackers to elevate their privileges. (bsc#1186060)
• CVE-2020-24586: Fixed a bug that, under the right circumstances, allows to inject arbitrary network packets and/or exfiltrate user data when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP. (bsc#1185859)
• CVE-2020-26141: Fixed a flaw that could allows an adversary to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bsc#1185987)
• CVE-2020-26145: Fixed a bug in the WEP, WPA, WPA2, and WPA3 implementations that could allows an adversary to inject arbitrary network packets. (bsc#1185860)
• CVE-2020-24587: Fixed a bug that allows an adversary to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed. (bsc#1185862)
• CVE-2020-26147: Fixed a bug in the WEP, WPA, WPA2, and WPA3 implementations that could allows an adversary to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames. (bsc#1185987)

The following non-security bugs were fixed:

• Bluetooth: SMP: Fail if remote and local public keys are identical (git-fixes).
• Drivers: hv: vmbus: Increase wait time for VMbus unload (bsc#1185724).
• Drivers: hv: vmbus: Initialize unload_event statically (bsc#1185724).
• hv_netvsc: Add handlers for ethtool get/set msg level (bsc#1175462).
• hv_netvsc: avoid retry on send during shutdown (bsc#1175462).
• hv_netvsc: avoid unnecessary wakeups on subchannel creation (bsc#1175462).
• hv_netvsc: cancel subchannel setup before halting device (bsc#1175462).
• hv_netvsc: change GPAD teardown order on older versions (bsc#1175462).
• hv_netvsc: common detach logic (bsc#1175462).
• hv_netvsc: delay setup of VF device (bsc#1175462).
• hv_netvsc: disable NAPI before channel close (bsc#1175462).
• hv_netvsc: Ensure correct teardown message sequence order (bsc#1175462).
• hv_netvsc: Fix a deadlock by getting rtnl lock earlier in netvsc_probe() (bsc#1175462).
• hv_netvsc: Fix a network regression after ifdown/ifup (bsc#1175462).
• hv_netvsc: fix deadlock on hotplug (bsc#1175462).
• hv_netvsc: Fix error handling in netvsc_attach() (bsc#1175462).
• hv_netvsc: fix error unwind handling if vmbus_open fails (bsc#1175462).
• hv_netvsc: Fix extra rcu_read_unlock in netvsc_recv_callback() (bsc#1175462).
• hv_netvsc: fix handling of fallback to single queue mode (bsc#1175462).
• hv_netvsc: Fix hash key value reset after other ops (bsc#1175462).
• hv_netvsc: Fix IP header checksum for coalesced packets (bsc#1175462).
• hv_netvsc: Fix net device attach on older Windows hosts (bsc#1175462).
• hv_netvsc: fix network namespace issues with VF support (bsc#1175462).
• hv_netvsc: Fix NULL dereference at single queue mode fallback (bsc#1175462).
• hv_netvsc: fix race during initialization (bsc#1175462).
• hv_netvsc: fix race on sub channel creation (bsc#1175462).
• hv_netvsc: fix race that may miss tx queue wakeup (bsc#1175462).
• hv_netvsc: fix schedule in RCU context (bsc#1175462).
• hv_netvsc: Fix the variable sizes in ipsecv2 and rsc offload (bsc#1175462).
• hv_netvsc: Fix tx_table init in rndis_set_subchannel() (bsc#1175462).
• hv_netvsc: Fix unwanted wakeup after tx_disable (bsc#1175462).
• hv_netvsc: Fix unwanted wakeup in netvsc_attach() (bsc#1175462).
• hv_netvsc: flag software created hash value (bsc#1175462).
• hv_netvsc: netvsc_teardown_gpadl() split (bsc#1175462).
• hv_netvsc: only wake transmit queue if link is up (bsc#1175462).
• hv_netvsc: pass netvsc_device to rndis halt (bsc#1175462).
• hv_netvsc: preserve hw_features on mtu/channels/ringparam changes (bsc#1175462).
• hv_netvsc: Refactor assignments of struct netvsc_device_info (bsc#1175462).
• hv_netvsc: set master device (bsc#1175462).
• hv_netvsc: Set tx_table to equal weight after subchannels open (bsc#1175462).
• hv_netvsc: Simplify num_chn checking in rndis_filter_device_add() (bsc#1175462).
• hv_netvsc: Split netvsc_revoke_buf() and netvsc_teardown_gpadl() (bsc#1175462).
• hv_netvsc: split sub-channel setup into async and sync (bsc#1175462).
• hv_netvsc: typo in NDIS RSS parameters structure (bsc#1175462).
• hv_netvsc: use RCU to fix concurrent rx and queue changes (bsc#1175462).
• hv_netvsc: use reciprocal divide to speed up percent calculation (bsc#1175462).
• hv_netvsc: Use Windows version instead of NVSP version on GPAD teardown (bsc#1175462).
• kgraft: truncate the output from state_show() sysfs attr (bsc#1186235).
• mm, memory_hotplug: do not clear numa_node association after hot_remove (bsc#1115026).
• mm: consider __HW_POISON pages when allocating from pcp lists (bsc#1187388).
• scsi: storvsc: Enable scatterlist entry lengths > 4Kbytes (bsc#1187193).
• video: hyperv_fb: Add ratelimit on error message (bsc#1185724).