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redhatRedHatRHSA-2024:2585
HistoryApr 30, 2024 - 2:02 p.m.

(RHSA-2024:2585) Moderate: kernel-rt security and bug fix update

2024-04-3014:02:51
access.redhat.com
13
real time linux kernel
fine-tuning
use-after-free
stack corruption
divide error
sys_membarrier
rhel-8.4.z batch 24

CVSS3

7.8

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

AI Score

8.2

Confidence

High

EPSS

0

Percentile

5.1%

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 l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)

  • kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption (CVE-2024-26586)

  • kernel: netfilter: divide error in nft_limit_init (CVE-2021-46915)

  • kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier (CVE-2024-26602)

Bug Fix(es):

  • kernel-rt: kernel: use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (JIRA:RHEL-20498)

  • TRIAGE CVE-2021-46915 kernel-rt: kernel: netfilter: divide error in nft_limit_init (JIRA:RHEL-29264)

  • kernel-rt: update RT source tree to the latest RHEL-8.4.z Batch 24 (JIRA:RHEL-29266)

  • kernel-rt: kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier (JIRA:RHEL-26391)

  • kernel-rt: kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption (JIRA:RHEL-29217)

OSVersionArchitecturePackageVersionFilename
RedHat8x86_64kernel-rt-debug< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-debug-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-modules< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-debug-modules-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-modules-extra< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-debug-modules-extra-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-kvm< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-kvm-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-core< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-debug-core-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debuginfo< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-debuginfo-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-devel< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-devel-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-kvm< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-debug-kvm-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-debug-debuginfo< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-debug-debuginfo-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
RedHat8x86_64kernel-rt-core< 4.18.0-305.130.1.rt7.206.el8_4kernel-rt-core-4.18.0-305.130.1.rt7.206.el8_4.x86_64.rpm
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CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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AI Score

8.2

Confidence

High

EPSS

0

Percentile

5.1%

JSON
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