SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2023:0634-1)

high Nessus Plugin ID 172256

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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-2023:0634-1 advisory.

- Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis of the data cache. (CVE-2017-5754)

- A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)

- A heap-based buffer overflow was found in the Linux kernel's LightNVM subsystem. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. This vulnerability allows a local attacker to escalate privileges and execute arbitrary code in the context of the kernel. The attacker must first obtain the ability to execute high-privileged code on the target system to exploit this vulnerability. (CVE-2022-2991)

- An out-of-bounds(OOB) memory access vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_kms.c in GPU component in the Linux kernel with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS). (CVE-2022-36280)

- A flaw incorrect access control in the Linux kernel USB core subsystem was found in the way user attaches usb device. A local user could use this flaw to crash the system. (CVE-2022-4662)

- In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with tc qdisc and tc class commands. This affects qdisc_graft in net/sched/sch_api.c. (CVE-2022-47929)

- The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ib_prctl_set function updates the Thread Information Flags (TIFs) for the task and updates the SPEC_CTRL MSR on the function __speculation_ctrl_update, but the IBPB is only issued on the next schedule, when the TIF bits are checked. This leaves the victim vulnerable to values already injected on the BTB, prior to the prctl syscall. The patch that added the support for the conditional mitigation via prctl (ib_prctl_set) dates back to the kernel 4.9.176. We recommend upgrading past commit a664ec9158eeddd75121d39c9a0758016097fa96 (CVE-2023-0045)

- A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.
SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e (CVE-2023-0266)

- A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 (net: sched: fix race condition in qdisc_graft()) not applied yet, then kernel could be affected. (CVE-2023-0590)

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.

Plugin Details

Severity: High

ID: 172256

File Name: suse_SU-2023-0634-1.nasl

Version: 1.4

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 3/8/2023

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: High

Score: 8.1

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

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

CVSS Score Source: CVE-2021-4203

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: CVSS:3.0/E:H/RL:O/RC:C

CVSS Score Source: CVE-2023-0266

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:dlm-kmp-default, p-cpe:/a:novell:suse_linux:cluster-md-kmp-default, p-cpe:/a:novell:suse_linux:kernel-default-extra, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:ocfs2-kmp-default, p-cpe:/a:novell:suse_linux:kernel-source, p-cpe:/a:novell:suse_linux:kernel-macros, p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-kgraft-devel, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-122_150-default, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:gfs2-kmp-default, p-cpe:/a:novell:suse_linux:kernel-default-kgraft, p-cpe:/a:novell:suse_linux:kernel-devel, p-cpe:/a:novell:suse_linux:kernel-obs-build

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: 3/7/2023

Vulnerability Publication Date: 1/3/2018

CISA Known Exploited Vulnerability Due Dates: 4/20/2023

Reference Information

CVE: CVE-2017-5754, CVE-2021-4203, CVE-2022-2991, CVE-2022-36280, CVE-2022-4662, CVE-2022-47929, CVE-2023-0045, CVE-2023-0266, CVE-2023-0590

SuSE: SUSE-SU-2023:0634-1

Detections

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