SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 26 for SLE 12 SP4) (SUSE-SU-2022:4577-1)

high Nessus Plugin ID 168940

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Synopsis

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

Description

The remote SUSE Linux SLES12 / SLES15 / SLES_SAP12 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:4577-1 advisory.

- A vulnerability has been found in Linux Kernel and classified as critical. Affected by this vulnerability is the function area_cache_get of the file drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c of the component IPsec. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier VDB-211045 was assigned to this vulnerability. (CVE-2022-3545)

- A flaw was found in the Linux kernel's networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service. (CVE-2022-3586)

- In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release. (CVE-2022-41218)

- A stack overflow flaw was found in the Linux kernel's SYSCTL subsystem in how a user changes certain kernel parameters and variables. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-4378)

- The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (CVE-2022-43945)

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-4_12_14-150000_150_95-default, kgraft-patch-4_12_14-122_116-default and / or kgraft-patch-4_12_14-95_96-default packages.

See Also

https://www.suse.com/security/cve/CVE-2022-3545

https://www.suse.com/security/cve/CVE-2022-3586

https://www.suse.com/security/cve/CVE-2022-41218

https://www.suse.com/security/cve/CVE-2022-4378

https://www.suse.com/security/cve/CVE-2022-43945

http://www.nessus.org/u?9c5ec4b9

https://bugzilla.suse.com/1203606

https://bugzilla.suse.com/1204424

https://bugzilla.suse.com/1204576

https://bugzilla.suse.com/1205130

https://bugzilla.suse.com/1206228

Plugin Details

Severity: High

ID: 168940

File Name: suse_SU-2022-4577-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/20/2022

Updated: 7/14/2023

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: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2022-4378

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:kernel-livepatch-4_12_14-150000_150_95-default, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_116-default, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-95_96-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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/19/2022

Vulnerability Publication Date: 9/21/2022

Reference Information

CVE: CVE-2022-3545, CVE-2022-3586, CVE-2022-41218, CVE-2022-4378, CVE-2022-43945

SuSE: SUSE-SU-2022:4577-1