NewStart CGSL MAIN 6.02 : kernel Multiple Vulnerabilities (NS-SA-2022-0073)

high Nessus Plugin ID 160769

Synopsis

The remote NewStart CGSL host is affected by multiple vulnerabilities.

Description

The remote NewStart CGSL host, running version MAIN 6.02, has kernel packages installed that are affected by multiple vulnerabilities:

- A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system. (CVE-2020-14356)

- A flaw was found in the Linux kernel's futex implementation. This flaw allows a local attacker to corrupt system memory or escalate their privileges when creating a futex on a filesystem that is about to be unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-14381)

- In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.
(CVE-2020-25211)

- A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13.
drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.
(CVE-2020-29661)

- 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)

- A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalation from the context of a network service or an unprivileged process. If sctp_destroy_sock is called without sock_net(sk)->sctp.addr_wq_lock then an element is removed from the auto_asconf_splist list without any proper locking. This can be exploited by an attacker with network service privileges to escalate to root or from the context of an unprivileged user directly if a BPF_CGROUP_INET_SOCK_CREATE is attached which denies creation of some SCTP socket. (CVE-2021-23133)

- The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value. (CVE-2021-33033)

- nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after- free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71. (CVE-2021-3348)

- 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)

- arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)

- net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.
(CVE-2021-38201)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the vulnerable CGSL kernel packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

Plugin Details

Severity: High

ID: 160769

File Name: newstart_cgsl_NS-SA-2022-0073_kernel.nasl

Version: 1.6

Type: local

Family: NewStart CGSL Local Security Checks

Published: 5/9/2022

Updated: 1/13/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2021-37576

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

Vulnerability Information

CPE: p-cpe:/a:zte:cgsl_main:bpftool, p-cpe:/a:zte:cgsl_main:bpftool-debuginfo, p-cpe:/a:zte:cgsl_main:kernel, p-cpe:/a:zte:cgsl_main:kernel-abi-whitelists, p-cpe:/a:zte:cgsl_main:kernel-core, p-cpe:/a:zte:cgsl_main:kernel-cross-headers, p-cpe:/a:zte:cgsl_main:kernel-debug, p-cpe:/a:zte:cgsl_main:kernel-debug-core, p-cpe:/a:zte:cgsl_main:kernel-ipaclones-internal, p-cpe:/a:zte:cgsl_main:kernel-modules, p-cpe:/a:zte:cgsl_main:kernel-modules-extra, p-cpe:/a:zte:cgsl_main:kernel-modules-internal, p-cpe:/a:zte:cgsl_main:kernel-selftests-internal, p-cpe:/a:zte:cgsl_main:kernel-sign-keys, p-cpe:/a:zte:cgsl_main:kernel-tools, p-cpe:/a:zte:cgsl_main:kernel-tools-debuginfo, p-cpe:/a:zte:cgsl_main:kernel-tools-libs, p-cpe:/a:zte:cgsl_main:kernel-tools-libs-devel, p-cpe:/a:zte:cgsl_main:perf, p-cpe:/a:zte:cgsl_main:perf-debuginfo, p-cpe:/a:zte:cgsl_main:python3-perf, p-cpe:/a:zte:cgsl_main:python3-perf-debuginfo, cpe:/o:zte:cgsl_main:6, p-cpe:/a:zte:cgsl_main:kernel-debug-debuginfo, p-cpe:/a:zte:cgsl_main:kernel-debug-devel, p-cpe:/a:zte:cgsl_main:kernel-debug-modules, p-cpe:/a:zte:cgsl_main:kernel-debug-modules-extra, p-cpe:/a:zte:cgsl_main:kernel-debug-modules-internal, p-cpe:/a:zte:cgsl_main:kernel-debuginfo, p-cpe:/a:zte:cgsl_main:kernel-debuginfo-common-x86_64, p-cpe:/a:zte:cgsl_main:kernel-devel, p-cpe:/a:zte:cgsl_main:kernel-headers

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/8/2022

Vulnerability Publication Date: 8/19/2020

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Netfilter x_tables Heap OOB Write Privilege Escalation)

Reference Information

CVE: CVE-2020-14356, CVE-2020-14381, CVE-2020-25211, CVE-2020-29661, CVE-2021-22555, CVE-2021-23133, CVE-2021-33033, CVE-2021-3348, CVE-2021-3612, CVE-2021-37576, CVE-2021-38201

Detections

Analytics