Lucene search

K
redhat
RedHatRHSA-2021:1739
HistoryMay 18, 2021 - 5:58 a.m.

(RHSA-2021:1739) Important: kernel-rt security and bug fix update

2021-05-1805:58:02
access.redhat.com
92

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

AV:N/AC:M/Au:S/C:P/I:P/A:C

0.002 Low

EPSS

Percentile

51.7%

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: Integer overflow in Intelยฎ Graphics Drivers (CVE-2020-12362)

  • 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: 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.

Use Vulners API to create your own security tool

API usage cases
  • Network scanning
  • Linux Patch management
  • Threat protection
  • No network audit solution

Ways of integration

Integrate Vulners API

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

AV:N/AC:M/Au:S/C:P/I:P/A:C

0.002 Low

EPSS

Percentile

51.7%

Related for RHSA-2021:1739