Important: kernel-rt security and bug fix update

2023-08-0100:00:00

Google

osv.dev

kernel-rt

real time linux

security

bug fix

ipvlan

cls_flower

kvm

speculative pointer

spectre v2

smt mitigations

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

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.2%

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: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)
kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)
kernel: KVM: x86/mmu: race condition in direct_page_fault() (CVE-2022-45869)
kernel: speculative pointer dereference in do_prlimit() in kernel/sys.c (CVE-2023-0458)
kernel: Spectre v2 SMT mitigations problem (CVE-2023-1998)

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.