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SUSE SLES15 Security Update : kernel RT (Live Patch 11 for SLE 15 SP4) (SUSE-SU-2023:3806-1)

medium Nessus Plugin ID 182127

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES15 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2023:3806-1 advisory.

 - A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack. (CVE-2023-4273)

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

Solution

Update the affected kernel-livepatch-5_14_21-150400_15_46-rt and / or kernel-livepatch-5_14_21-150500_13_11-rt packages.

See Also

https://bugzilla.suse.com/1214123

http://www.nessus.org/u?f406ae52

https://www.suse.com/security/cve/CVE-2023-4273

Plugin Details

Severity: Medium

ID: 182127

File Name: suse_SU-2023-3806-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 9/28/2023

Updated: 11/2/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.1

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

CVSS Score Source: CVE-2023-4273

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 6

Vector: CVSS:3.0/AV:L/AC:L/PR:H/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:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:kernel-livepatch-5_14_21-150400_15_46-rt, p-cpe:/a:novell:suse_linux:kernel-livepatch-5_14_21-150500_13_11-rt

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/27/2023

Vulnerability Publication Date: 8/9/2023

Reference Information

CVE: CVE-2023-4273

SuSE: SUSE-SU-2023:3806-1