SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2022:2382-1)

high Nessus Plugin ID 163096

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Synopsis

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

Description

The remote SUSE Linux SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2382-1 advisory.

- The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. This affects certs/blacklist.c and certs/system_keyring.c.
(CVE-2020-26541)

- An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system. (CVE-2021-4157)

- A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem. (CVE-2022-1012)

- A use-after-free flaw was found in the Linux kernel's Atheros wireless adapter driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-1679)

- In lg_probe and related functions of hid-lg.c and other USB HID files, there is a possible out of bounds read due to improper input validation. This could lead to local information disclosure if a malicious USB HID device were plugged in, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-188677105References: Upstream kernel (CVE-2022-20132)

- In ip_check_mc_rcu of igmp.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege when opening and closing inet sockets with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-112551163References: Upstream kernel (CVE-2022-20141)

- In lock_sock_nested of sock.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174846563References: Upstream kernel (CVE-2022-20154)

- There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges. (CVE-2022-2318)

- Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).
Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). (CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742)

- Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-29900)

- Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-29901)

- drivers/block/floppy.c in the Linux kernel before 5.17.6 is vulnerable to a denial of service, because of a concurrency use-after-free flaw after deallocating raw_cmd in the raw_cmd_ioctl function.
(CVE-2022-33981)

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/1129770

https://bugzilla.suse.com/1177282

https://bugzilla.suse.com/1194013

https://bugzilla.suse.com/1196964

https://bugzilla.suse.com/1197170

https://bugzilla.suse.com/1199482

https://bugzilla.suse.com/1199487

https://bugzilla.suse.com/1199657

https://bugzilla.suse.com/1200343

https://bugzilla.suse.com/1200571

https://bugzilla.suse.com/1200599

https://bugzilla.suse.com/1200600

https://bugzilla.suse.com/1200604

https://bugzilla.suse.com/1200605

https://bugzilla.suse.com/1200608

https://bugzilla.suse.com/1200619

https://bugzilla.suse.com/1200692

https://bugzilla.suse.com/1200762

https://bugzilla.suse.com/1200806

https://bugzilla.suse.com/1200807

https://bugzilla.suse.com/1200809

https://bugzilla.suse.com/1200810

https://bugzilla.suse.com/1200813

https://bugzilla.suse.com/1200820

https://bugzilla.suse.com/1200821

https://bugzilla.suse.com/1200822

https://bugzilla.suse.com/1200829

https://bugzilla.suse.com/1200868

https://bugzilla.suse.com/1200869

https://bugzilla.suse.com/1200870

https://bugzilla.suse.com/1200871

https://bugzilla.suse.com/1200872

https://bugzilla.suse.com/1200873

https://bugzilla.suse.com/1200925

https://bugzilla.suse.com/1201080

https://bugzilla.suse.com/1201251

https://www.suse.com/security/cve/CVE-2020-26541

https://www.suse.com/security/cve/CVE-2021-4157

https://www.suse.com/security/cve/CVE-2022-1012

https://www.suse.com/security/cve/CVE-2022-1679

https://www.suse.com/security/cve/CVE-2022-20132

https://www.suse.com/security/cve/CVE-2022-20141

https://www.suse.com/security/cve/CVE-2022-20154

https://www.suse.com/security/cve/CVE-2022-2318

https://www.suse.com/security/cve/CVE-2022-26365

https://www.suse.com/security/cve/CVE-2022-29900

https://www.suse.com/security/cve/CVE-2022-29901

https://www.suse.com/security/cve/CVE-2022-33740

https://www.suse.com/security/cve/CVE-2022-33741

https://www.suse.com/security/cve/CVE-2022-33742

https://www.suse.com/security/cve/CVE-2022-33981

http://www.nessus.org/u?32de157b

Plugin Details

Severity: High

ID: 163096

File Name: suse_SU-2022-2382-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 7/14/2022

Updated: 7/13/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.4

Temporal Score: 5.8

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

CVSS Score Source: CVE-2021-4157

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.4

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

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

CVSS Score Source: CVE-2022-1012

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-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-kgraft, p-cpe:/a:novell:suse_linux:kernel-default-kgraft-devel, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-devel, p-cpe:/a:novell:suse_linux:kernel-macros, p-cpe:/a:novell:suse_linux:kernel-obs-build, p-cpe:/a:novell:suse_linux:kernel-source, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_127-default, p-cpe:/a:novell:suse_linux:ocfs2-kmp-default, cpe:/o:novell:suse_linux:12

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: 7/13/2022

Vulnerability Publication Date: 10/2/2020

Reference Information

CVE: CVE-2020-26541, CVE-2021-4157, CVE-2022-1012, CVE-2022-1679, CVE-2022-20132, CVE-2022-20141, CVE-2022-20154, CVE-2022-2318, CVE-2022-26365, CVE-2022-29900, CVE-2022-29901, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742, CVE-2022-33981

SuSE: SUSE-SU-2022:2382-1