SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 38 for SLE 15 SP1) (SUSE-SU-2023:4795-1)

high Nessus Plugin ID 186861

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:4795-1 advisory.

- A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)

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-4_12_14-150100_197_137-default and / or kgraft-patch-4_12_14-122_173-default packages.

Plugin Details

Severity: High

ID: 186861

File Name: suse_SU-2023-4795-1.nasl

Version: 1.3

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 12/14/2023

Updated: 12/19/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2023-4622

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-livepatch-4_12_14-150100_197_137-default, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_173-default, cpe:/o:novell:suse_linux:12, cpe:/o:novell:suse_linux:15

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/13/2023

Vulnerability Publication Date: 9/6/2023

Reference Information

CVE: CVE-2023-4622

SuSE: SUSE-SU-2023:4795-1

Detections

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