SUSE SLES15 Security Update : kernel (SUSE-SU-2021:2408-1)

high Nessus Plugin ID 151880

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-2021:2408-1 advisory.

- A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c.
This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space (CVE-2021-22555)

- fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05. (CVE-2021-33909)

- kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument. (CVE-2021-35039)

- To fix this vulnerability, update the affected packages: linux linux-esx (CVE-2021-3609)

- An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3612)

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 packages.

See Also

https://bugzilla.suse.com/1065729

https://bugzilla.suse.com/1085224

https://bugzilla.suse.com/1094840

https://bugzilla.suse.com/1152472

https://bugzilla.suse.com/1152489

https://bugzilla.suse.com/1170511

https://bugzilla.suse.com/1179243

https://bugzilla.suse.com/1183871

https://bugzilla.suse.com/1184114

https://bugzilla.suse.com/1184804

https://bugzilla.suse.com/1185308

https://bugzilla.suse.com/1185791

https://bugzilla.suse.com/1187215

https://bugzilla.suse.com/1187585

https://bugzilla.suse.com/1188036

https://bugzilla.suse.com/1188062

https://bugzilla.suse.com/1188080

https://bugzilla.suse.com/1188116

https://bugzilla.suse.com/1188121

https://bugzilla.suse.com/1188176

https://bugzilla.suse.com/1188267

https://bugzilla.suse.com/1188268

https://bugzilla.suse.com/1188269

http://www.nessus.org/u?0da1752e

https://www.suse.com/security/cve/CVE-2021-22555

https://www.suse.com/security/cve/CVE-2021-33909

https://www.suse.com/security/cve/CVE-2021-35039

https://www.suse.com/security/cve/CVE-2021-3609

https://www.suse.com/security/cve/CVE-2021-3612

Plugin Details

Severity: High

ID: 151880

File Name: suse_SU-2021-2408-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 7/21/2021

Updated: 1/20/2022

Supported Sensors: Nessus Agent

Risk Information

CVSS Score Source: CVE-2021-3612

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:H/RL:OF/RC:C

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: E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-azure, p-cpe:/a:novell:suse_linux:kernel-azure-devel, p-cpe:/a:novell:suse_linux:kernel-devel-azure, p-cpe:/a:novell:suse_linux:kernel-source-azure, p-cpe:/a:novell:suse_linux:kernel-syms-azure, 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: 7/20/2021

Vulnerability Publication Date: 4/20/2021

Exploitable With

Metasploit (Netfilter x_tables Heap OOB Write Privilege Escalation)

Reference Information

CVE: CVE-2021-3609, CVE-2021-3612, CVE-2021-22555, CVE-2021-33909, CVE-2021-35039

SuSE: SUSE-SU-2021:2408-1

IAVA: 2021-A-0350