SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2022:0198-1)

high Nessus Plugin ID 157146

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Synopsis

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

Description

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0198-1 advisory.

- A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system.
This flaw affects Linux kernel versions prior to 5.16-rc4. (CVE-2021-4083)

- A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this flaw to get unauthorized access to some data. (CVE-2021-4135)

- A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem. (CVE-2021-4149)

- An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system. (CVE-2021-4197)

- A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem. (CVE-2021-4202)

- In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses. (CVE-2021-45485)

- In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small. (CVE-2021-45486)

- nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace. (CVE-2021-46283)

- A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system. (CVE-2022-0185)

- A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)

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.

See Also

https://bugzilla.suse.com/1065729

https://bugzilla.suse.com/1071995

https://bugzilla.suse.com/1154353

https://bugzilla.suse.com/1154492

https://bugzilla.suse.com/1156395

https://bugzilla.suse.com/1167773

https://bugzilla.suse.com/1176447

https://bugzilla.suse.com/1176774

https://bugzilla.suse.com/1177437

https://bugzilla.suse.com/1190256

https://bugzilla.suse.com/1191271

https://bugzilla.suse.com/1191929

https://bugzilla.suse.com/1192931

https://bugzilla.suse.com/1193255

https://bugzilla.suse.com/1193328

https://bugzilla.suse.com/1193660

https://bugzilla.suse.com/1193669

https://bugzilla.suse.com/1193727

https://bugzilla.suse.com/1193901

https://bugzilla.suse.com/1193927

https://bugzilla.suse.com/1194001

https://bugzilla.suse.com/1194027

https://bugzilla.suse.com/1194087

https://bugzilla.suse.com/1194094

https://bugzilla.suse.com/1194266

https://bugzilla.suse.com/1194302

https://bugzilla.suse.com/1194493

https://bugzilla.suse.com/1194516

https://bugzilla.suse.com/1194517

https://bugzilla.suse.com/1194518

https://bugzilla.suse.com/1194529

https://bugzilla.suse.com/1194578

https://bugzilla.suse.com/1194580

https://bugzilla.suse.com/1194584

https://bugzilla.suse.com/1194586

https://bugzilla.suse.com/1194587

https://bugzilla.suse.com/1194589

https://bugzilla.suse.com/1194590

https://bugzilla.suse.com/1194591

https://bugzilla.suse.com/1194592

https://bugzilla.suse.com/1194888

https://bugzilla.suse.com/1194953

https://bugzilla.suse.com/1194985

https://www.suse.com/security/cve/CVE-2021-4083

https://www.suse.com/security/cve/CVE-2021-4135

https://www.suse.com/security/cve/CVE-2021-4149

https://www.suse.com/security/cve/CVE-2021-4197

https://www.suse.com/security/cve/CVE-2021-4202

https://www.suse.com/security/cve/CVE-2021-45485

https://www.suse.com/security/cve/CVE-2021-45486

https://www.suse.com/security/cve/CVE-2021-46283

https://www.suse.com/security/cve/CVE-2022-0185

https://www.suse.com/security/cve/CVE-2022-0322

http://www.nessus.org/u?3b70c378

Plugin Details

Severity: High

ID: 157146

File Name: suse_SU-2022-0198-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 1/27/2022

Updated: 7/13/2023

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6

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

CVSS Score Source: CVE-2022-0185

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.8

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:cluster-md-kmp-default, p-cpe:/a:novell:suse_linux:dlm-kmp-default, p-cpe:/a:novell:suse_linux:gfs2-kmp-default, p-cpe:/a:novell:suse_linux:kernel-64kb, p-cpe:/a:novell:suse_linux:kernel-64kb-devel, p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-extra, p-cpe:/a:novell:suse_linux:kernel-default-livepatch, p-cpe:/a:novell:suse_linux:kernel-default-livepatch-devel, p-cpe:/a:novell:suse_linux:kernel-devel, p-cpe:/a:novell:suse_linux:kernel-livepatch-5_3_18-150300_59_43-default, p-cpe:/a:novell:suse_linux:kernel-macros, p-cpe:/a:novell:suse_linux:kernel-obs-build, p-cpe:/a:novell:suse_linux:kernel-preempt, p-cpe:/a:novell:suse_linux:kernel-preempt-devel, p-cpe:/a:novell:suse_linux:kernel-preempt-extra, p-cpe:/a:novell:suse_linux:kernel-source, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-zfcpdump, p-cpe:/a:novell:suse_linux:ocfs2-kmp-default, p-cpe:/a:novell:suse_linux:reiserfs-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: 1/26/2022

Vulnerability Publication Date: 12/25/2021

Exploitable With

Core Impact

Reference Information

CVE: CVE-2021-4083, CVE-2021-4135, CVE-2021-4149, CVE-2021-4197, CVE-2021-4202, CVE-2021-45485, CVE-2021-45486, CVE-2021-46283, CVE-2022-0185, CVE-2022-0322

SuSE: SUSE-SU-2022:0198-1