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Red Hat Enterprise Linux 7.7 RHSA-2020-4236 Moderate Use-After-Free

red hat
Calendar Grey October 13, 2020
Dist Redhat Esm H88
Ubuntu has announced an important software patch for version 20.04, addressing vulnerabilities in the systemd service and mitigating a possible out-of-bounds write security risk.
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: use-after-free caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver (CVE-2019-19527)
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):
* OVS drops secondary SCTP connection (BZ#1871912)
* A gfs2 filesystem had a withdraw: function = gfs2_meta_indirect_buffer, file = fs/gfs2/meta_io.c, line = 428 (BZ#1872271)
* Secure boot key is not loaded with kernel-3.10.0-1159.el7: MODSIGN: Couldn't get UEFI MokListRT (BZ#1876953)

Topics%20covered

Topics Covered

security advisory kernel update bug fix Red Hat Enterprise Linux moderate severity use-after-free USB device

References

https://access.redhat.com/security/cve/CVE-2019-19527 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):
Source: kernel-3.10.0-1062.36.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1062.36.1.el7.noarch.rpm kernel-doc-3.10.0-1062.36.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-1062.36.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm kernel-3.10.0-1062.36.1.el7.x86_64.rpm kernel-debug-3.10.0-1062.36.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.36.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.36.1.el7.x86_64.rpm kernel-devel-3.10.0-1062.36.1.el7.x86_64.rpm kernel-headers-3.10.0-1062.36.1.el7.x86_64.rpm kernel-tools-3.10.0-1062.36.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.36.1.el7.x86_64.rpm perf-3.10.0-1062.36.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm python-perf-3.10.0-1062.36.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):
x86_64: bpftool-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.36.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:4236-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4236
Issue date: 2020-10-13

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 Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory kernel update bug fix Red Hat Enterprise Linux moderate severity use-after-free USB device

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

1783498 - CVE-2019-19527 kernel: use-after-free caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver

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