[LU-13859] kernel update [SLES15 SP2 5.3.18-24.9.1]

• Type: Improvement
• Resolution: Won't Fix
• Priority: Minor
• Assignee: Jian Yu
• Reporter: Jian Yu

Description

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-19462: relay_open in kernel/relay.c in the Linux kernel allowed
  local users to cause a denial of service (such as relay blockage) by
  triggering a NULL alloc_percpu result (bnc#1158265).
• CVE-2019-20810: Fixed a memory leak in go7007_snd_init in
  drivers/media/usb/go7007/snd-go7007.c because it did not call
  snd_card_free for a failure path (bnc#1172458).
• CVE-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo()
  function in net/packet/af_packet.c could result in a denial of service
  (CPU consumption and soft lockup) in a certain failure case involving
  TPACKET_V3 (bnc#1172453).
• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible
  use-after-free due to a race condition. This could lead to local
  escalation of privilege with System execution privileges needed. User
  interaction is not needed for exploitation (bnc#1174462).
• CVE-2020-10135: Legacy pairing and secure-connections pairing
  authentication in Bluetooth® BR/EDR Core Specification v5.2 and earlier
  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-2020-10711: A NULL pointer dereference flaw was found in the SELinux
  subsystem in versions This flaw occurs while importing the Commercial IP
  Security Option (CIPSO) protocol's category bitmap into the SELinux
  extensible bitmap via the' ebitmap_netlbl_import' routine. This flaw
  allowed a remote network user to crash the system kernel, resulting in a
  denial of service (bnc#1171191).
• CVE-2020-10732: A flaw was found in the implementation of Userspace core
  dumps. This flaw allowed an attacker with a local account to crash a
  trivial program and exfiltrate private kernel data (bnc#1171220).
• CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation,
  where it incorrectly assumed that an skb would only contain a single
  netlink message. The hook would incorrectly only validate the first
  netlink message in the skb and allow or deny the rest of the messages
  within the skb with the granted permission without further processing
  (bnc#1171189).
• CVE-2020-10766: Fixed an issue which allowed an attacker with a local
  account to disable SSBD protection (bnc#1172781).
• CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier
  was disabled in certain circumstances, leaving the system open to a
  spectre v2 style attack (bnc#1172782).
• CVE-2020-10768: Fixed an issue with the prctl() function, where indirect
  branch speculation could be enabled even though it was diabled before
  (bnc#1172783).
• CVE-2020-10773: Fixed a memory leak on s390/s390x, in the
  cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).
• CVE-2020-10781: A zram sysfs resource consumption was fixed
  (bnc#1173074).
• CVE-2020-12656: Fixed a memory leak in gss_mech_free in the
  rpcsec_gss_krb5 implementation, caused by a lack of certain
  domain_release calls (bnc#1171219).
• CVE-2020-12769: An issue was discovered in drivers/spi/spi-dw.c allowed
  attackers to cause a panic via concurrent calls to dw_spi_irq and
  dw_spi_transfer_one (bnc#1171983).
• CVE-2020-12771: An issue was discovered in btree_gc_coalesce 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-2020-13143: gadget_dev_desc_UDC_store in
  drivers/usb/gadget/configfs.c relies on kstrdup without considering the
  possibility of an internal '\0' value, which allowed attackers to
  trigger an out-of-bounds read (bnc#1171982).
• CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c,
  if k_ascii is called several times in a row (bnc#1172775).
• 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-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c
  where injection of malicious ACPI tables via configfs could be used by
  attackers to bypass lockdown and secure boot restrictions, aka
  CID-75b0cea7bf30 (bnc#1173573).

The following non-security bugs were fixed:
https://lists.suse.com/pipermail/sle-security-updates/2020-August/007215.html

Issue Links

• is related to: LU-13963 kernel update [SLES15 SP2 5.3.18-24.15.1]
• is related to: LU-13820 support for SLES 15 SP2

Comments

[Jian Yu]

A new version is available: LU-13963