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Ubuntu: USN-2021-1234-1: High Kernel Vulnerability Patch

red hat
Calendar Grey October 15, 2019
Dist Redhat Esm H88
Red Hat Enterprise Linux 7 has released a kernel update addressing critical security vulnerabilities and system bugs that necessitate prompt attention.
An update for kernel is now available for Red Hat Enterprise Linux 7

Solution

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c (CVE-2018-20856)
* kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c (CVE-2019-3846)
* hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)
* kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)
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 Fixes:
* gfs2: Fix iomap write page reclaim deadlock (BZ#1737373)
* [FJ7.6 Bug]: [REG] kernel: ipc: ipc_free should use kvfree (BZ#1740178)
* high update_cfs_rq_blocked_load contention (BZ#1740180)
* [Hyper-V][RHEL 7] kdump fails to start on a Hyper-V guest of Windows Server 2019. (BZ#1740188)
* kvm: backport cpuidle-haltpoll driver (BZ#1740192)
* Growing unreclaimable slab memory (BZ#1741920)
* [bnx2x] ping failed from pf to vf which has been attached to vm (BZ#1741926)
* [Hyper-V]vPCI devices cannot allocate IRQs vectors in a Hyper-V VM with > 240 vCPUs (i.e., when in x2APIC mode) (BZ#1743324)
* Macsec: inbound MACSEC frame is unexpectedly dropped with InPktsNotValid (BZ#1744442)
* RHEL 7.7 Beta - Hit error when trying to run nvme connect with IPv6 address (BZ#1744443)
* RHEL 7.6 SS4 - Paths lost when running straight I/O on NVMe/RoCE system (BZ#1744444)
* NFSv4.0 client sending a double CLOSE (leading to EIO application failure) (BZ#1744946)
* [Azure] CRI-RDOS | [RHEL 7.8] Live migration only takes 10 seconds, but the VM was unavailable for 2 hours (BZ#1748239)
* NFS client autodisconnect timer may fire immediately after TCP connection setup and may cause DoS type reconnect problem in complex network environments (BZ#1749290)
* [Inspur] RHEL7.6 ASPEED graphic card display issue (BZ#1749296)
* Allows macvlan to operated correctly over the active-backup mode to support bonding events. (BZ#1751579)
* [LLNL 7.5 Bug] slab leak causing a crash when using kmem control group (BZ#1752421)
Users of kernel are advised to upgrade to these updated packages, which fix these bugs.

Topics%20covered

Topics Covered

security advisory Red Hat kernel update bug fix heap overflow security impact important issue

References

https://access.redhat.com/security/cve/CVE-2018-20856 https://access.redhat.com/security/cve/CVE-2019-3846 https://access.redhat.com/security/cve/CVE-2019-9506 https://access.redhat.com/security/cve/CVE-2019-10126 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-1062.4.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1062.4.1.el7.noarch.rpm kernel-doc-3.10.0-1062.4.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-1062.4.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm kernel-3.10.0-1062.4.1.el7.x86_64.rpm kernel-debug-3.10.0-1062.4.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.4.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.4.1.el7.x86_64.rpm kernel-devel-3.10.0-1062.4.1.el7.x86_64.rpm kernel-headers-3.10.0-1062.4.1.el7.x86_64.rpm kernel-tools-3.10.0-1062.4.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.4.1.el7.x86_64.rpm perf-3.10.0-1062.4.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm python-perf-3.10.0-1062.4.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: bpftool-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.4.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.4.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:3055-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3055
Issue date: 2019-10-15

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat kernel update bug fix heap overflow security impact important issue

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1713059 - CVE-2019-3846 kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c

1716992 - CVE-2019-10126 kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c

1727857 - CVE-2019-9506 hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB)

1738705 - CVE-2018-20856 kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c

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