RHEL 8 : kernel-rt (RHSA-2020:4609)

high Nessus Plugin ID 142382

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Synopsis

The remote Red Hat host is missing one or more security updates for kernel-rt.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4609 advisory.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: use after free due to race condition in the video driver leads to local privilege escalation (CVE-2019-9458)

* kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

* kernel: out-of-bounds access in function hclge_tm_schd_mode_vnet_base_cfg (CVE-2019-15925)

* kernel: memory leak in ccp_run_sha_cmd() (CVE-2019-18808)

* kernel: Denial Of Service in the __ipmi_bmc_register() (CVE-2019-19046)

* kernel: out-of-bounds write in ext4_xattr_set_entry in fs/ext4/xattr.c (CVE-2019-19319)

* Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

* kernel: use-after-free in ext4_put_super (CVE-2019-19447)

* kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

* kernel: race condition caused by a malicious USB device in the USB character device driver layer (CVE-2019-19537)

* kernel: use-after-free in serial_ir_init_module() (CVE-2019-19543)

* kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry (CVE-2019-19767)

* kernel: use-after-free in debugfs_remove (CVE-2019-19770)

* kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

* kernel: possible use-after-free due to a race condition in cdev_get of char_dev.c (CVE-2020-0305)

* kernel: out-of-bounds read in in vc_do_resize (CVE-2020-8647)

* kernel: use-after-free in n_tty_receive_buf_common (CVE-2020-8648)

* kernel: invalid read location in vgacon_invert_region (CVE-2020-8649)

* kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

* kernel: SELinux netlink permission check bypass (CVE-2020-10751)

* kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)

* kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c (CVE-2020-11668)

* kernel: out-of-bounds write in xdp_umem_reg (CVE-2020-12659)

* kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

* kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

* kernel: referencing inode of removed superblock in get_futex_key() causes UAF (CVE-2020-14381)

* kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS (CVE-2020-25641)

* kernel: kernel pointer leak due to WARN_ON statement in video driver leads to local information disclosure (CVE-2019-9455)

* kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

* kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

* kernel: memory leak in af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c (CVE-2019-18809)

* kernel: A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() (CVE-2019-19056)

* kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS (CVE-2019-19062)

* kernel: Two memory leaks in the rtl_usb_probe() (CVE-2019-19063)

* kernel: A memory leak in the rtl8xxxu_submit_int_urb() (CVE-2019-19068)

* kernel: A memory leak in the predicate_parse() function in kernel/trace/trace_events_filter.c allows for a DoS (CVE-2019-19072)

* kernel: information leak bug caused by a malicious USB device in the drivers/media/usb/ttusb- dec/ttusb_dec.c (CVE-2019-19533)

* kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c (CVE-2019-20054)

* kernel: possibility of memory disclosure when reading the file /proc/sys/kernel/rh_features (CVE-2020-10774)

* kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

* kernel: sync of excessive duration via an XFS v5 image with crafted metadata (CVE-2020-12655)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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 RHEL kernel-rt package based on the guidance in RHSA-2020:4609.

Plugin Details

Severity: High

ID: 142382

File Name: redhat-RHSA-2020-4609.nasl

Version: 1.13

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/4/2020

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2021-3715

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-2019-19770

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/4/2020

Vulnerability Publication Date: 5/30/2019

Reference Information

CVE: CVE-2019-15917, CVE-2019-15925, CVE-2019-16231, CVE-2019-16233, CVE-2019-18808, CVE-2019-18809, CVE-2019-19046, CVE-2019-19056, CVE-2019-19062, CVE-2019-19063, CVE-2019-19068, CVE-2019-19072, CVE-2019-19319, CVE-2019-19332, CVE-2019-19447, CVE-2019-19524, CVE-2019-19533, CVE-2019-19537, CVE-2019-19543, CVE-2019-19767, CVE-2019-19770, CVE-2019-20054, CVE-2019-20636, CVE-2019-9455, CVE-2019-9458, CVE-2020-0305, CVE-2020-10732, CVE-2020-10751, CVE-2020-10774, CVE-2020-10942, CVE-2020-11565, CVE-2020-11668, CVE-2020-12655, CVE-2020-12659, CVE-2020-12770, CVE-2020-12826, CVE-2020-14381, CVE-2020-25641, CVE-2020-8647, CVE-2020-8648, CVE-2020-8649, CVE-2021-3715

CWE: 119, 200, 349, 362, 400, 416, 476, 787, 835, 908, 909, 94

RHSA: 2020:4609

Detections

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