RHSA-2021:1578: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es):

• kernel: Integer overflow in Intel® Graphics Drivers (CVE-2020-12362)
• kernel: memory leak in sof_set_get_large_ctrl_data() function in sound/soc/sof/ipc.c (CVE-2019-18811)
• kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (CVE-2019-19523)
• kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver (CVE-2019-19528)
• kernel: possible out of bounds write in kbd_keycode of keyboard.c (CVE-2020-0431)
• kernel: DoS by corrupting mountpoint reference counter (CVE-2020-12114)
• kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c (CVE-2020-12464)
• kernel: buffer uses out of index in ext3/4 filesystem (CVE-2020-14314)
• kernel: Use After Free vulnerability in cgroup BPF component (CVE-2020-14356)
• kernel: NULL pointer dereference in serial8250_isa_init_ports function in drivers/tty/serial/8250/8250_core.c (CVE-2020-15437)
• kernel: umask not applied on filesystem without ACL support (CVE-2020-24394)
• kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212)
• kernel: incomplete permission checking for access to rbd devices (CVE-2020-25284)
• kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c (CVE-2020-25285)
• kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow (CVE-2020-25643)
• kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)
• kernel: use-after-free in kernel midi subsystem (CVE-2020-27786)
• kernel: child process is able to access parent mm through hfi dev file handle (CVE-2020-27835)
• kernel: slab-out-of-bounds read in fbcon (CVE-2020-28974)
• kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent (CVE-2020-35508)
• kernel: fuse: fuse_do_getattr() calls make_bad_inode() in inappropriate situations (CVE-2020-36322)
• kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege (CVE-2021-0342)
• kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in drivers/media/usb/gspca/ov519.c (CVE-2020-11608) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section. Related CVEs:
• CVE-2019-18811: kernel: memory leak in sof_set_get_large_ctrl_data() function in sound/soc/sof/ipc.c
• CVE-2019-19523: kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver
• CVE-2019-19528: kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver
• CVE-2020-0431: kernel: possible out of bounds write in kbd_keycode of keyboard.c
• CVE-2020-11608: kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in drivers/media/usb/gspca/ov519.c
• CVE-2020-12114: kernel: DoS by corrupting mountpoint reference counter
• CVE-2020-12362: kernel: Integer overflow in Intel® Graphics Drivers
• CVE-2020-12363: kernel: Improper input validation in some Intel® Graphics Drivers
• CVE-2020-12364: kernel: Null pointer dereference in some Intel® Graphics Drivers
• CVE-2020-12464: kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c
• CVE-2020-14314: kernel: buffer uses out of index in ext3/4 filesystem
• CVE-2020-14356: kernel: Use After Free vulnerability in cgroup BPF component
• CVE-2020-15437: kernel: NULL pointer dereference in serial8250_isa_init_ports function in drivers/tty/serial/8250/8250_core.c
• CVE-2020-24394: kernel: umask not applied on filesystem without ACL support
• CVE-2020-25212: kernel: TOCTOU mismatch in the NFS client code
• CVE-2020-25284: kernel: incomplete permission checking for access to rbd devices
• CVE-2020-25285: kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c
• CVE-2020-25643: kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow
• CVE-2020-25704: kernel: perf_event_parse_addr_filter memory
• CVE-2020-27786: kernel: use-after-free in kernel midi subsystem
• CVE-2020-27835: kernel: child process is able to access parent mm through hfi dev file handle
• CVE-2020-28974: kernel: slab-out-of-bounds read in fbcon
• CVE-2020-35508: kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
• CVE-2020-36322: kernel: fuse: fuse_do_getattr() calls make_bad_inode() in inappropriate situations
• CVE-2021-0342: kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege
• CVE-2021-0605: kernel: In pfkey_dump() dplen and splen can both be specified to access the xfrm_address_t structure out of bounds