SUSE SLES15 Security Update : kernel (SUSE-SU-2023:4030-1)

high Nessus Plugin ID 182903

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Synopsis

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

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4030-1 advisory.

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

- CVE-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that could be exploited in order to leak internal kernel information or crash the system (bsc#1214351).
- CVE-2023-42753: Fixed an array indexing vulnerability in the netfilter subsystem. This issue may have allowed a local user to crash the system or potentially escalate their privileges (bsc#1215150).
- CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703).
- CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalatio (bsc#1215275).
- CVE-2023-23454: Fixed a type-confusion in the CBQ network scheduler (bsc#1207036).
- CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
- CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
- CVE-2020-36766: Fixed a potential information leak in in the CEC driver (bsc#1215299).
- CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
- CVE-2023-2177: Fixed a null pointer dereference issue in the sctp network protocol which could allow a user to crash the system (bsc#1210643).
- CVE-2023-4881: Fixed an out-of-bounds write flaw in the netfilter subsystem that could lead to information disclosure or denial of service (bsc#1215221).
- CVE-2023-40283: Fixed a use-after-free issue in the Bluetooth subsystem (bsc#1214233).
- CVE-2023-1192: Fixed a use-after-free in the CIFS subsystem (bsc#1208995).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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 packages.

Plugin Details

Severity: High

ID: 182903

File Name: suse_SU-2023-4030-1.nasl

Version: 1.1

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/11/2023

Updated: 9/24/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2023-4921

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:reiserfs-kmp-default, p-cpe:/a:novell:suse_linux:dlm-kmp-default, p-cpe:/a:novell:suse_linux:kernel-default-livepatch, p-cpe:/a:novell:suse_linux:kernel-livepatch-5_3_18-150200_24_166-default, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-default-livepatch-devel, p-cpe:/a:novell:suse_linux:cluster-md-kmp-default, p-cpe:/a:novell:suse_linux:kernel-source, p-cpe:/a:novell:suse_linux:kernel-preempt-devel, p-cpe:/a:novell:suse_linux:ocfs2-kmp-default, p-cpe:/a:novell:suse_linux:kernel-macros, p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-preempt, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-devel, p-cpe:/a:novell:suse_linux:kernel-obs-build, p-cpe:/a:novell:suse_linux:gfs2-kmp-default, cpe:/o:novell:suse_linux:15

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: 10/10/2023

Vulnerability Publication Date: 8/15/2022

Reference Information

CVE: CVE-2020-36766, CVE-2023-1192, CVE-2023-1206, CVE-2023-1859, CVE-2023-2177, CVE-2023-23454, CVE-2023-40283, CVE-2023-42753, CVE-2023-4389, CVE-2023-4622, CVE-2023-4623, CVE-2023-4921

SuSE: SUSE-SU-2023:4030-1

Detections

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