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RHEL 8 : kpatch-patch (RHSA-2023:4888)

high Nessus Plugin ID 180327

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Synopsis

The remote Red Hat host is missing one or more security updates for kpatch-patch.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:4888 advisory.

 - kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)

 - kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)

 - kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)

 - kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL kpatch-patch package based on the guidance in RHSA-2023:4888.

See Also

http://www.nessus.org/u?3d92562c

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2147364

https://bugzilla.redhat.com/show_bug.cgi?id=2188470

https://bugzilla.redhat.com/show_bug.cgi?id=2213260

https://bugzilla.redhat.com/show_bug.cgi?id=2215768

https://access.redhat.com/errata/RHSA-2023:4888

Plugin Details

Severity: High

ID: 180327

File Name: redhat-RHSA-2023-4888.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/31/2023

Updated: 4/28/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.5

Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-42896

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:rhel_eus:8.6, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-372_41_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-372_46_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-372_51_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-372_52_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-372_57_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-372_64_1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/30/2023

Vulnerability Publication Date: 11/23/2022

Reference Information

CVE: CVE-2022-42896, CVE-2023-1829, CVE-2023-3390, CVE-2023-35788

CWE: 119, 416, 787

RHSA: 2023:4888