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Red Hat Enterprise Linux 7.4: RHSA-2019:2696-01 Important Kernel Update

red hat
Calendar Grey September 10, 2019
Dist Redhat Esm H88
Kernel enhancement for Red Hat Enterprise Linux featuring crucial security patches and issue resolutions detailed in the notification.
An update for kernel is now available for Red Hat Enterprise Linux 7.4 Extended Update Support

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: Memory corruption due to incorrect socket cloning (CVE-2018-9568)
* kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405)
* kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)
* kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)
* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)
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):
* fragmented packets timing out (BZ#1729411)
* kernel build: speed up debuginfo extraction (BZ#1731462)
* TCP packets are segmented when sent to the VM (TAP) (BZ#1732744)
* TCP packets are segmented when sent to the VLAN device when coming from VXLAN dev. (BZ#1732809)
* skb head copy occurs when sending traffic over OVS managed VXLAN tunnel (BZ#1733626)
* [mlx4] VXLAN over VLAN TCP segmentation (BZ#1734160)
* use "make -jN" for modules_install (BZ#1735081)
* shmem: consider shm_mnt as a long-term mount (BZ#1737376)
* [ESXi][RHEL7]use-after-free of scsi_cmnd on VMWare virtual guest with vmw_pvscsi and ata_piix (BZ#1737377)
* Backport TCP follow-up for small buffers (BZ#1739127)

Topics%20covered

Topics Covered

security advisory memory corruption Red Hat Enterprise Linux kernel fix important update

References

https://access.redhat.com/security/cve/CVE-2018-9568 https://access.redhat.com/security/cve/CVE-2018-13405 https://access.redhat.com/security/cve/CVE-2018-16871 https://access.redhat.com/security/cve/CVE-2018-16884 https://access.redhat.com/security/cve/CVE-2019-1125 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/articles/4329821

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.4):
Source: kernel-3.10.0-693.58.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-693.58.1.el7.noarch.rpm kernel-doc-3.10.0-693.58.1.el7.noarch.rpm
x86_64: kernel-3.10.0-693.58.1.el7.x86_64.rpm kernel-debug-3.10.0-693.58.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.58.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.58.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.58.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.58.1.el7.x86_64.rpm kernel-devel-3.10.0-693.58.1.el7.x86_64.rpm kernel-headers-3.10.0-693.58.1.el7.x86_64.rpm kernel-tools-3.10.0-693.58.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.58.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.58.1.el7.x86_64.rpm perf-3.10.0-693.58.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.58.1.el7.x86_64.rpm python-perf-3.10.0-693.58.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.58.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4):
x86_64: kernel-debug-debuginfo-3.10.0-693.58.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.58.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.58.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.58.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.58.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:2696-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2696
Issue date: 2019-09-10

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.4Extended Update Support.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 memory corruption Red Hat Enterprise Linux kernel fix important update

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.4) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.4) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.4) - ppc64, ppc64le, x86_64

Bugs Fixed

1599161 - CVE-2018-13405 kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members1655162 - CVE-2018-16871 kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence

1655904 - CVE-2018-9568 kernel: Memory corruption due to incorrect socket cloning

1660375 - CVE-2018-16884 kernel: nfs: use-after-free in svc_process_common()

1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability

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