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redhatRedHatRHSA-2021:0004
HistoryJan 04, 2021 - 8:54 a.m.

(RHSA-2021:0004) Important: kernel-rt security and bug fix update

2021-01-0408:54:34
access.redhat.com
70

6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

3.6 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

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: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)

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 RT source tree to the RHEL-8.3.z source tree (BZ#1906140)
OSVersionArchitecturePackageVersionFilename
RedHat8x86_64kernel-rt-devel< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-devel-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt-modules-extra< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-modules-extra-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt-debug-devel< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-debug-devel-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt-kvm< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-kvm-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt-debug< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-debug-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt-debug-kvm< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-debug-kvm-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt-debuginfo-common-x86_64< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-debuginfo-common-x86_64-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt-modules< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-modules-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
RedHat8x86_64kernel-rt-debug-modules< 4.18.0-240.10.1.rt7.64.el8_3kernel-rt-debug-modules-4.18.0-240.10.1.rt7.64.el8_3.x86_64.rpm
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6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

3.6 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

JSON
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