NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0222)

High Nessus Plugin ID 131421

New! Vulnerability Priority Rating (VPR)

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VPR Score: 8.3

Synopsis

The remote machine is affected by multiple vulnerabilities.

Description

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has kernel-rt packages installed that are affected by multiple vulnerabilities:

- Microarchitectural Store Buffer Data Sampling (MSBDS):
Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www /public/us/en/documents/corporate- information/SA00233-microcode-update- guidance_05132019.pdf (CVE-2018-12126)

- Microarchitectural Load Port Data Sampling (MLPDS): Load ports on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en /documents/corporate-information/SA00233-microcode- update-guidance_05132019.pdf (CVE-2018-12127)

- Microarchitectural Fill Buffer Data Sampling (MFBDS):
Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www /public/us/en/documents/corporate- information/SA00233-microcode-update- guidance_05132019.pdf (CVE-2018-12130)

- An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an
__blk_drain_queue() use-after-free because a certain error case is mishandled. (CVE-2018-20856)

- A flaw was found in the Linux kernel. A heap based buffer overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c might lead to memory corruption and possibly other consequences.
(CVE-2019-10126)

- A vulnerability was found in Linux kernel's, versions up to 3.10, implementation of overlayfs. An attacker with local access can create a denial of service situation via NULL pointer dereference in ovl_posix_acl_create function in fs/overlayfs/dir.c. This can allow attackers with ability to create directories on overlayfs to crash the kernel creating a denial of service (DOS).
(CVE-2019-10140)

- Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.inte l.com/content/dam/www/public/us/en/documents/corporate- information/SA00233-microcode-update- guidance_05132019.pdf (CVE-2019-11091)

- An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvm_coalesced_mmio' object, wherein write indices 'ring->first' and 'ring->last' value could be supplied by a host user-space process. An unprivileged host user or process with access to '/dev/kvm' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system. (CVE-2019-14821)

- A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network. (CVE-2019-3846)

- The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute- force attacks (aka KNOB) that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.
(CVE-2019-9506)

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

Solution

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

See Also

http://security.gd-linux.com/notice/NS-SA-2019-0222

Plugin Details

Severity: High

ID: 131421

File Name: newstart_cgsl_NS-SA-2019-0222_kernel-rt.nasl

Version: 1.3

Type: local

Published: 2019/12/02

Updated: 2020/11/13

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 8.3

CVSS Score Source: CVE-2019-3846

CVSS v2.0

Base Score: 8.3

Temporal Score: 6.1

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/11/22

Vulnerability Publication Date: 2019/05/30

Reference Information

CVE: CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2018-20856, CVE-2019-3846, CVE-2019-9500, CVE-2019-9503, CVE-2019-9506, CVE-2019-10126, CVE-2019-10140, CVE-2019-11091, CVE-2019-14821

BID: 108011, 108330, 108521, 108817