The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:2316 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: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

    * kernel: Use after free via PI futex state (CVE-2021-3347)

    * kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c (CVE-2020-8648)

    * kernel: Improper input validation in some Intel(R) Graphics Drivers (CVE-2020-12363)

    * kernel: Null pointer dereference in some Intel(R) Graphics Drivers (CVE-2020-12364)

    * kernel: Speculation on pointer arithmetic against bpf_context pointer (CVE-2020-27170)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * lru-add-drain workqueue on RT is allocated without being used (BZ#1894587)

    * kernel-rt: update to the latest RHEL7.9.z source tree (BZ#1953118)

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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4431 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: use after free 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 (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  (CVE-2020-0305)

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

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

    * kernel: invalid read location in vgacon_invert_region function (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  (CVE-2020-11565)

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

    * kernel: buffer overflow in mt76_add_fragment function (CVE-2020-12465)

    * kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and     data coruption (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 dlpar_parse_cc_property  (CVE-2019-12614)

    * 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 (CVE-2019-18809)

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

    * kernel: memory leak in the crypto_report() function (CVE-2019-19062)

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

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

    * kernel: A memory leak in the predicate_parse() function (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() (CVE-2019-20054)

    * kernel: kernel stack information leak on s390/s390x (CVE-2020-10773)

    * 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.

ID	Name	Product	Family	Published	Updated	Severity
150380	RHEL 7 : kernel-rt (RHSA-2021:2316)	Nessus	Red Hat Local Security Checks	6/9/2021	11/7/2024	high
142430	RHEL 8 : kernel (RHSA-2020:4431)	Nessus	Red Hat Local Security Checks	11/4/2020	11/7/2024	high

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