- Issued:
- 2020-11-03
- Updated:
- 2020-11-03
RHSA-2020:4431 - Moderate: kernel security, bug fix, and enhancement update
Synopsis
Moderate: kernel security, bug fix, and enhancement update
Type/Severity
Security Advisory Moderate
Topic
An update for kernel is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
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)
Solution
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 | 8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 8.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions | 8.4 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 8.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 8.4 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension | 8.8 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension | 8.6 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension | 8.4 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Life Cycle | 8.10 | x86_64 |
| Red Hat Enterprise Linux for Power, little endian | 8 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 8.8 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 8.6 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | 8.4 | ppc64le |
| Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle | 8.10 | ppc64le |
| Red Hat Enterprise Linux for IBM z Systems | 8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 8.8 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 8.6 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 8.4 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle | 8.10 | s390x |
| Red Hat Enterprise Linux for ARM 64 | 8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 8.8 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 8.6 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Update Support | 8.4 | aarch64 |
| Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle | 8.10 | aarch64 |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 8.8 | ppc64le |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 8.6 | ppc64le |
| Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions | 8.4 | ppc64le |
| Red Hat Enterprise Linux Server - TUS | 8.8 | x86_64 |
| Red Hat Enterprise Linux Server - TUS | 8.6 | x86_64 |
| Red Hat Enterprise Linux Server - TUS | 8.4 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 8.6 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 8.4 | x86_64 |
| Red Hat CodeReady Linux Builder for x86_64 | 8 | x86_64 |
| Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support | 8.8 | x86_64 |
| Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support | 8.6 | x86_64 |
| Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support | 8.4 | x86_64 |
| Red Hat CodeReady Linux Builder for Power, little endian | 8 | ppc64le |
| Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support | 8.8 | ppc64le |
| Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support | 8.6 | ppc64le |
| Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support | 8.4 | ppc64le |
| Red Hat CodeReady Linux Builder for ARM 64 | 8 | aarch64 |
| Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support | 8.8 | aarch64 |
| Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support | 8.6 | aarch64 |
| Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support | 8.4 | aarch64 |
Updated Packages
- python3-perf-4.18.0-240.el8.ppc64le.rpm
- kernel-tools-libs-devel-4.18.0-240.el8.x86_64.rpm
- kernel-cross-headers-4.18.0-240.el8.x86_64.rpm
- kernel-debuginfo-4.18.0-240.el8.ppc64le.rpm
- kernel-debuginfo-common-x86_64-4.18.0-240.el8.x86_64.rpm
- kernel-debuginfo-4.18.0-240.el8.s390x.rpm
- perf-debuginfo-4.18.0-240.el8.x86_64.rpm
- kernel-modules-extra-4.18.0-240.el8.ppc64le.rpm
- kernel-zfcpdump-devel-4.18.0-240.el8.s390x.rpm
- kernel-abi-whitelists-4.18.0-240.el8.noarch.rpm
- kernel-tools-debuginfo-4.18.0-240.el8.x86_64.rpm
- kernel-zfcpdump-debuginfo-4.18.0-240.el8.s390x.rpm
- kernel-debug-4.18.0-240.el8.s390x.rpm
- kernel-debug-debuginfo-4.18.0-240.el8.ppc64le.rpm
- kernel-debug-core-4.18.0-240.el8.aarch64.rpm
- kernel-debug-core-4.18.0-240.el8.ppc64le.rpm
- perf-4.18.0-240.el8.aarch64.rpm
- kernel-core-4.18.0-240.el8.aarch64.rpm
- kernel-modules-4.18.0-240.el8.s390x.rpm
- kernel-cross-headers-4.18.0-240.el8.ppc64le.rpm
- kernel-modules-4.18.0-240.el8.x86_64.rpm
- kernel-tools-4.18.0-240.el8.s390x.rpm
- kernel-debug-modules-extra-4.18.0-240.el8.s390x.rpm
- bpftool-debuginfo-4.18.0-240.el8.ppc64le.rpm
- kernel-4.18.0-240.el8.src.rpm
- kernel-modules-extra-4.18.0-240.el8.s390x.rpm
- bpftool-debuginfo-4.18.0-240.el8.aarch64.rpm
- python3-perf-debuginfo-4.18.0-240.el8.x86_64.rpm
- bpftool-4.18.0-240.el8.x86_64.rpm
- kernel-debuginfo-4.18.0-240.el8.x86_64.rpm
- kernel-tools-libs-devel-4.18.0-240.el8.aarch64.rpm
- kernel-tools-debuginfo-4.18.0-240.el8.ppc64le.rpm
- kernel-devel-4.18.0-240.el8.x86_64.rpm
- kernel-zfcpdump-modules-4.18.0-240.el8.s390x.rpm
- kernel-4.18.0-240.el8.ppc64le.rpm
- perf-4.18.0-240.el8.s390x.rpm
- kernel-modules-4.18.0-240.el8.ppc64le.rpm
- kernel-zfcpdump-core-4.18.0-240.el8.s390x.rpm
- kernel-debug-modules-4.18.0-240.el8.aarch64.rpm
- kernel-debug-modules-4.18.0-240.el8.x86_64.rpm
- kernel-debug-devel-4.18.0-240.el8.x86_64.rpm
- kernel-debug-debuginfo-4.18.0-240.el8.aarch64.rpm
- kernel-core-4.18.0-240.el8.s390x.rpm
- kernel-debuginfo-common-aarch64-4.18.0-240.el8.aarch64.rpm
- perf-4.18.0-240.el8.ppc64le.rpm
- kernel-devel-4.18.0-240.el8.s390x.rpm
- kernel-modules-extra-4.18.0-240.el8.aarch64.rpm
- kernel-modules-4.18.0-240.el8.aarch64.rpm
- kernel-debug-modules-4.18.0-240.el8.s390x.rpm
- kernel-4.18.0-240.el8.aarch64.rpm
- kernel-modules-extra-4.18.0-240.el8.x86_64.rpm
- kernel-headers-4.18.0-240.el8.s390x.rpm
- kernel-tools-libs-4.18.0-240.el8.ppc64le.rpm
- kernel-4.18.0-240.el8.s390x.rpm
- kernel-debuginfo-4.18.0-240.el8.aarch64.rpm
- kernel-debug-modules-extra-4.18.0-240.el8.x86_64.rpm
- bpftool-debuginfo-4.18.0-240.el8.s390x.rpm
- kernel-doc-4.18.0-240.el8.noarch.rpm
- kernel-tools-libs-devel-4.18.0-240.el8.ppc64le.rpm
- kernel-tools-debuginfo-4.18.0-240.el8.aarch64.rpm
- kernel-core-4.18.0-240.el8.ppc64le.rpm
- kernel-cross-headers-4.18.0-240.el8.aarch64.rpm
- kernel-debuginfo-common-s390x-4.18.0-240.el8.s390x.rpm
- python3-perf-debuginfo-4.18.0-240.el8.aarch64.rpm
- kernel-debug-debuginfo-4.18.0-240.el8.x86_64.rpm
- kernel-headers-4.18.0-240.el8.aarch64.rpm
- kernel-debug-devel-4.18.0-240.el8.aarch64.rpm
- python3-perf-4.18.0-240.el8.s390x.rpm
- kernel-devel-4.18.0-240.el8.aarch64.rpm
- bpftool-4.18.0-240.el8.ppc64le.rpm
- kernel-headers-4.18.0-240.el8.x86_64.rpm
- kernel-debug-modules-extra-4.18.0-240.el8.ppc64le.rpm
- perf-debuginfo-4.18.0-240.el8.ppc64le.rpm
- kernel-debuginfo-common-ppc64le-4.18.0-240.el8.ppc64le.rpm
- kernel-debug-4.18.0-240.el8.x86_64.rpm
- kernel-tools-debuginfo-4.18.0-240.el8.s390x.rpm
- kernel-debug-core-4.18.0-240.el8.x86_64.rpm
- kernel-tools-4.18.0-240.el8.ppc64le.rpm
- kernel-zfcpdump-4.18.0-240.el8.s390x.rpm
- kernel-debug-devel-4.18.0-240.el8.s390x.rpm
- kernel-tools-libs-4.18.0-240.el8.aarch64.rpm
- perf-debuginfo-4.18.0-240.el8.aarch64.rpm
- kernel-4.18.0-240.el8.x86_64.rpm
- kernel-tools-4.18.0-240.el8.aarch64.rpm
- kernel-debug-modules-4.18.0-240.el8.ppc64le.rpm
- python3-perf-4.18.0-240.el8.aarch64.rpm
- bpftool-4.18.0-240.el8.s390x.rpm
- kernel-headers-4.18.0-240.el8.ppc64le.rpm
- kernel-debug-debuginfo-4.18.0-240.el8.s390x.rpm
- kernel-debug-modules-extra-4.18.0-240.el8.aarch64.rpm
- kernel-debug-devel-4.18.0-240.el8.ppc64le.rpm
- perf-debuginfo-4.18.0-240.el8.s390x.rpm
- kernel-debug-4.18.0-240.el8.ppc64le.rpm
- python3-perf-4.18.0-240.el8.x86_64.rpm
- kernel-tools-4.18.0-240.el8.x86_64.rpm
- kernel-devel-4.18.0-240.el8.ppc64le.rpm
- bpftool-4.18.0-240.el8.aarch64.rpm
- kernel-cross-headers-4.18.0-240.el8.s390x.rpm
- python3-perf-debuginfo-4.18.0-240.el8.s390x.rpm
- python3-perf-debuginfo-4.18.0-240.el8.ppc64le.rpm
- perf-4.18.0-240.el8.x86_64.rpm
- kernel-zfcpdump-modules-extra-4.18.0-240.el8.s390x.rpm
- kernel-core-4.18.0-240.el8.x86_64.rpm
- bpftool-debuginfo-4.18.0-240.el8.x86_64.rpm
- kernel-tools-libs-4.18.0-240.el8.x86_64.rpm
- kernel-debug-4.18.0-240.el8.aarch64.rpm
- kernel-debug-core-4.18.0-240.el8.s390x.rpm
Fixes
- This content is not included.BZ - 1660798
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- This content is not included.BZ - 1834845
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- This content is not included.BZ - 1844520
- This content is not included.BZ - 1846380
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- This content is not included.BZ - 1853447
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- This content is not included.BZ - 1860065
- This content is not included.BZ - 1874311
- This content is not included.BZ - 1881424
CVEs
- CVE-2019-9455
- CVE-2019-9458
- CVE-2019-12614
- 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-2019-19602
- CVE-2019-19767
- CVE-2019-19770
- CVE-2019-20054
- CVE-2019-20636
- CVE-2019-20812
- CVE-2020-0305
- CVE-2020-0444
- CVE-2020-8647
- CVE-2020-8648
- CVE-2020-8649
- CVE-2020-10732
- CVE-2020-10751
- CVE-2020-10773
- CVE-2020-10774
- CVE-2020-10942
- CVE-2020-11565
- CVE-2020-11668
- CVE-2020-12465
- CVE-2020-12655
- CVE-2020-12659
- CVE-2020-12770
- CVE-2020-12826
- CVE-2020-14381
- CVE-2020-25641
- CVE-2021-3715
- CVE-2022-50219
- CVE-2023-53585
- CVE-2025-21727
References
- https://access.redhat.com/security/updates/classification/#moderate
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/index
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.