Important: kernel-rt security and bug fix update

2023-08-0100:00:00

Google

osv.dev

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

13.2%

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.