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redhatRedHatRHSA-2024:0378
HistoryJan 23, 2024 - 5:16 p.m.

(RHSA-2024:0378) Important: kpatch-patch security update

2024-01-2317:16:18
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3
kernel
security
update
live patch
out-of-bounds write
oversize packet
use after free
netfilter
integer underflow
bpf
igb driver

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.017 Low

EPSS

Percentile

87.5%

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

Security Fix(es):

  • kernel: out-of-bounds write in qfq_change_class function (CVE-2023-31436)

  • kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (CVE-2023-3812)

  • kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611)

  • kernel: net/sched: sch_hfsc UAF (CVE-2023-4623)

  • kernel: use after free in unix_stream_sendpage (CVE-2023-4622)

  • kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)

  • kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)

  • kernel: use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178)

  • kernel: IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)

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.

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.017 Low

EPSS

Percentile

87.5%