The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
CVE-2020-15780: A lockdown bypass for loading unsigned modules using ACPI table injection was fixed. (bsc#1173573)
CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).
CVE-2020-12771: An issue was discovered in btreegccoalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).
CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
CVE-2020-10773: Fixed a memory leak on s390/s390x, in the cmmtimeouthander in file arch/s390/mm/cmm.c (bnc#1172999).
CVE-2020-14416: Fixed a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
CVE-2020-0305: Fixed a possible use-after-free due to a race condition incdevget of chardev.c. This could lead to local escalation of privilege. User interaction is not needed for exploitation (bnc#1174462).
CVE-2020-10769: A buffer over-read flaw was found in cryptoauthencextractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
CVE-2020-10781: Fixed a denial of service issue in the ZRAM implementation (bnc#1173074).
CVE-2019-20908: Fixed incorrect access permissions for the efivar_ssdt ACPI variable, which could be used by attackers to bypass lockdown or secure boot restrictions (bnc#1173567).
CVE-2019-16746: Fixed a buffer overflow in net/wireless/nl80211.c, related to invalid length checks for variable elements in a beacon head (bnc#1152107).
CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).
CVE-2020-14331: Fixed a buffer over write in vgaconscrollbackupdate() (bnc#1174205).
The following non-security bugs were fixed:
ACPI: GED: add support for _Exx / _Lxx handler methods (bsc#1111666).
ACPI: GED: use correct trigger type field in _Exx / _Lxx handling (bsc#1111666).
ACPI: NFIT: Fix unlock on error in scrub_show() (bsc#1171753).
ACPI: sysfs: Fix pmprofileattr type (bsc#1111666).
ACPI: video: Use native backlight on Acer Aspire 5783z (bsc#1111666).
ACPI: video: Use native backlight on Acer TravelMate 5735Z (bsc#1111666).
ALSA: hda - let hsmic be picked ahead of hpmic (bsc#1111666).
ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534 (bsc#1111666).
ALSA: lx6464es - add support for LX6464ESe pci express variant (bsc#1111666).
ALSA: opl3: fix infoleak in opl3 (bsc#1111666).
ALSA: usb-audio: add quirk for MacroSilicon MS2109 (bsc#1111666).