SUSE SLES15 Security Update : kernel (Live Patch 1 for SLE 15 SP5) (SUSE-SU-2024:1380-1)

high Nessus Plugin ID 193724

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1380-1 advisory.

- A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

- A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660. (CVE-2024-1086)

- In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems. (CVE-2024-26622)

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 affected kernel-livepatch-5_14_21-150400_24_81-default and / or kernel-livepatch-5_14_21-150500_55_7-default packages.

See Also

https://bugzilla.suse.com/1216644

https://bugzilla.suse.com/1219435

https://bugzilla.suse.com/1220828

https://lists.suse.com/pipermail/sle-updates/2024-April/035055.html

https://www.suse.com/security/cve/CVE-2023-5717

https://www.suse.com/security/cve/CVE-2024-1086

https://www.suse.com/security/cve/CVE-2024-26622

Plugin Details

Severity: High

ID: 193724

File Name: suse_SU-2024-1380-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 4/23/2024

Updated: 4/24/2024

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

CVSS Score Source: CVE-2024-1086

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-livepatch-5_14_21-150500_55_7-default, p-cpe:/a:novell:suse_linux:kernel-livepatch-5_14_21-150400_24_81-default, cpe:/o:novell:suse_linux:15

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/22/2024

Vulnerability Publication Date: 10/25/2023

Reference Information

CVE: CVE-2023-5717, CVE-2024-1086, CVE-2024-26622

SuSE: SUSE-SU-2024:1380-1