CentOS 8 : kernel-rt (CESA-2021:4140)

high Nessus Plugin ID 155070


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


The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:4140 advisory.

- kernel: Intel graphics card information leak. (CVE-2019-14615)

- kernel: out-of-bounds reads in pinctrl subsystem. (CVE-2020-0427)

- kernel: Improper input validation in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24502)

- kernel: Insufficient access control in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24503)

- kernel: Uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24504)

- kernel: Fragmentation cache not cleared on reconnection (CVE-2020-24586)

- kernel: Reassembling fragments encrypted under different keys (CVE-2020-24587)

- kernel: wifi frame payload being parsed incorrectly as an L2 frame (CVE-2020-24588)

- kernel: Forwarding EAPOL from unauthenticated wifi client (CVE-2020-26139)

- kernel: accepting plaintext data frames in protected networks (CVE-2020-26140)

- kernel: not verifying TKIP MIC of fragmented frames (CVE-2020-26141)

- kernel: accepting fragmented plaintext frames in protected networks (CVE-2020-26143)

- kernel: accepting unencrypted A-MSDU frames that start with RFC1042 header (CVE-2020-26144)

- kernel: accepting plaintext broadcast fragments as full frames (CVE-2020-26145)

- kernel: reassembling encrypted fragments with non-consecutive packet numbers (CVE-2020-26146)

- kernel: reassembling mixed encrypted/plaintext fragments (CVE-2020-26147)

- kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check (CVE-2020-29368)

- kernel: locking inconsistency in drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c can lead to a read- after-free (CVE-2020-29660)

- kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function in drivers/net/wireless/marvell/mwifiex/join.c via a long SSID value (CVE-2020-36158)

- kernel: memory leak upon a kmalloc failure in kvm_io_bus_unregister_dev function in virt/kvm/kvm_main.c (CVE-2020-36312)

- kernel: slab out-of-bounds read in hci_extended_inquiry_result_evt() in net/bluetooth/hci_event.c (CVE-2020-36386)

- kernel: Improper access control in BlueZ may allow information disclosure vulnerability. (CVE-2021-0129)

- kernel: heap overflow in __cgroup_bpf_run_filter_getsockopt() (CVE-2021-20194)

- kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure (CVE-2021-20239)

- kernel: Race condition in sctp_destroy_sock list_del (CVE-2021-23133)

- kernel: fuse: stall on CPU can occur because a retry loop continually finds the same bad inode (CVE-2021-28950)

- kernel: System crash in intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c (CVE-2021-28971)

- kernel: protection for sequences of pointer arithmetic operations against speculatively out-of-bounds loads can be bypassed to leak content of kernel memory (CVE-2021-29155)

- kernel: improper input validation in tipc_nl_retrieve_key function in net/tipc/node.c (CVE-2021-29646)

- kernel: lack a full memory barrier upon the assignment of a new table value in net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h may lead to DoS (CVE-2021-29650)

- kernel: local escalation of privileges in handling of eBPF programs (CVE-2021-31440)

- kernel: protection of stack pointer against speculative pointer arithmetic can be bypassed to leak content of kernel memory (CVE-2021-31829)

- kernel: out of bounds array access in drivers/md/dm-ioctl.c (CVE-2021-31916)

- kernel: use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c (CVE-2021-33033)

- kernel: out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic operations by BPF verifier (CVE-2021-33200)

- kernel: Use-after-free in ndb_queue_rq() in drivers/block/nbd.c (CVE-2021-3348)

- kernel: Linux kernel eBPF RINGBUF map oversized allocation (CVE-2021-3489)

- kernel: double free in bluetooth subsystem when the HCI device initialization fails (CVE-2021-3564)

- kernel: use-after-free in function hci_sock_bound_ioctl() (CVE-2021-3573)

- kernel: eBPF 32-bit source register truncation on div/mod (CVE-2021-3600)

- kernel: flowtable list del corruption with kernel BUG at lib/list_debug.c:50 (CVE-2021-3635)

- kernel: NULL pointer dereference in llsec_key_alloc() in net/mac802154/llsec.c (CVE-2021-3659)

- kernel: DoS in rb_per_cpu_empty() (CVE-2021-3679)

- kernel: overlayfs: Mounting overlayfs inside an unprivileged user namespace can reveal files (CVE-2021-3732)

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


Update the affected packages.

See Also


Plugin Details

Severity: High

ID: 155070

File Name: centos8_RHSA-2021-4140.nasl

Version: 1.4

Type: local

Agent: unix

Published: 11/11/2021

Updated: 1/16/2024

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

Risk Information


Risk Factor: Medium

Score: 6.7


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-2021-3489


Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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:F/RL:O/RC:C

CVSS Score Source: CVE-2021-3600

Vulnerability Information

CPE: cpe:/o:centos:centos:8-stream, p-cpe:/a:centos:centos:kernel-rt, p-cpe:/a:centos:centos:kernel-rt-core, p-cpe:/a:centos:centos:kernel-rt-debug, p-cpe:/a:centos:centos:kernel-rt-debug-core, p-cpe:/a:centos:centos:kernel-rt-debug-devel, p-cpe:/a:centos:centos:kernel-rt-debug-modules, p-cpe:/a:centos:centos:kernel-rt-debug-modules-extra, p-cpe:/a:centos:centos:kernel-rt-devel, p-cpe:/a:centos:centos:kernel-rt-modules, p-cpe:/a:centos:centos:kernel-rt-modules-extra

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/9/2021

Vulnerability Publication Date: 1/15/2020

Reference Information

CVE: CVE-2019-14615, CVE-2020-0427, CVE-2020-24502, CVE-2020-24503, CVE-2020-24504, CVE-2020-24586, CVE-2020-24587, CVE-2020-24588, CVE-2020-26139, CVE-2020-26140, CVE-2020-26141, CVE-2020-26143, CVE-2020-26144, CVE-2020-26145, CVE-2020-26146, CVE-2020-26147, CVE-2020-29368, CVE-2020-29660, CVE-2020-36158, CVE-2020-36312, CVE-2020-36386, CVE-2021-0129, CVE-2021-20194, CVE-2021-20239, CVE-2021-23133, CVE-2021-28950, CVE-2021-28971, CVE-2021-29155, CVE-2021-29646, CVE-2021-29650, CVE-2021-31440, CVE-2021-31829, CVE-2021-31916, CVE-2021-33033, CVE-2021-33200, CVE-2021-3348, CVE-2021-3489, CVE-2021-3564, CVE-2021-3573, CVE-2021-3600, CVE-2021-3635, CVE-2021-3659, CVE-2021-3679, CVE-2021-3732

IAVA: 2021-A-0222-S, 2021-A-0223-S

RHSA: 2021:4140