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redhatRedHatRHSA-2021:0338
HistoryFeb 02, 2021 - 9:27 a.m.

(RHSA-2021:0338) Moderate: kernel-rt security and bug fix update

2021-02-0209:27:15
access.redhat.com
91

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

28.7%

JSON

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: use-after-free in fs/block_dev.c (CVE-2020-15436)

  • kernel: Nfsd failure to clear umask after processing an open or create (CVE-2020-35513)

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.

Bug Fix(es):

  • kernel-rt: update to the latest RHEL7.9.z3 source tree (BZ#1906133)

  • [kernel-rt] WARNING: CPU: 8 PID: 586 at kernel/sched/core.c:3644 migrate_enable+0x15f/0x210 (BZ#1916123)

  • [kernel-rt-debug] [ BUG: bad unlock balance detected! ] [RHEL-7.9.z] (BZ#1916130)

OSVersionArchitecturePackageVersionFilename
RedHat7x86_64kernel-rt-trace< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-trace-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debuginfo-common-x86_64< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-debuginfo-common-x86_64-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
RedHat7x86_64kernel-rt-trace-debuginfo< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-trace-debuginfo-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug-devel< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-debug-devel-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug-kvm< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-debug-kvm-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug-kvm-debuginfo< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-debug-kvm-debuginfo-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debuginfo< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-debuginfo-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
RedHat7noarchkernel-rt-doc< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-doc-3.10.0-1160.15.2.rt56.1152.el7.noarch.rpm
RedHat7x86_64kernel-rt-kvm-debuginfo< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-kvm-debuginfo-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
RedHat7x86_64kernel-rt-debug-debuginfo< 3.10.0-1160.15.2.rt56.1152.el7kernel-rt-debug-debuginfo-3.10.0-1160.15.2.rt56.1152.el7.x86_64.rpm
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6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.001 Low

EPSS

Percentile

28.7%

JSON
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