Alerts This Week
Warning Icon 1 1,154
Alerts This Week
Warning Icon 1 1,154

Red Hat Enterprise Linux 7.7 RHSA-2021-1531-01 Important Kernel Fix

red hat
Calendar Grey May 11, 2021
Dist Redhat Esm H88
Crucial kernel security and bug resolution update for Red Hat Enterprise Linux 7.7 classified as important, addressing multiple issues.
An update for kernel is now available for Red Hat Enterprise Linux 7.7 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: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
* kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)
* kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)
* kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)
* kernel: malicious USB devices can lead to multiple out-of-bounds write (CVE-2019-19532)
* kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705)
* kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363)
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):
* memcg: mem_cgroup_idr can be updated in an uncoordinated manner which can lead to corruption (BZ#1931899)
* [infiniband] Backport Request to fix Multicast Sendonly joins (BZ#1937819)
* [Azure][RHEL-7]Mellanox Patches To Prevent Kernel Hang In MLX4 (BZ#1939791)

Topics%20covered

Topics Covered

security advisory bug fix threat important kernel Red Hat Enterprise CVE

References

https://access.redhat.com/security/cve/CVE-2019-19532 https://access.redhat.com/security/cve/CVE-2020-25211 https://access.redhat.com/security/cve/CVE-2020-25705 https://access.redhat.com/security/cve/CVE-2020-28374 https://access.redhat.com/security/cve/CVE-2021-27363 https://access.redhat.com/security/cve/CVE-2021-27364 https://access.redhat.com/security/cve/CVE-2021-27365 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):
Source: kernel-3.10.0-1062.49.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1062.49.1.el7.noarch.rpm kernel-doc-3.10.0-1062.49.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-1062.49.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.49.1.el7.x86_64.rpm kernel-devel-3.10.0-1062.49.1.el7.x86_64.rpm kernel-headers-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.49.1.el7.x86_64.rpm perf-3.10.0-1062.49.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm python-perf-3.10.0-1062.49.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):
x86_64: bpftool-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.49.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:1531-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1531
Issue date: 2021-05-11

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.7Extended 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 bug fix threat important kernel Red Hat Enterprise CVE

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.7) - ppc64, ppc64le, x86_64

Bugs Fixed

1781821 - CVE-2019-19532 kernel: malicious USB devices can lead to multiple out-of-bounds write

1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c

1894579 - CVE-2020-25705 kernel: ICMP rate limiting can be used for DNS poisoning attack

1899804 - CVE-2020-28374 kernel: SCSI target (LIO) write to any block on ILO backstore

1930078 - CVE-2021-27365 kernel: heap buffer overflow in the iSCSI subsystem

1930079 - CVE-2021-27363 kernel: iscsi: unrestricted access to sessions and handles

1930080 - CVE-2021-27364 kernel: out-of-bounds read in libiscsi module

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here