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RedHat: RHSA-2020-3545-01 Moderate: Kernel-Alt DoS and Buffer Over-Read

red hat
Calendar Grey August 25, 2020
Dist Redhat Esm H88
A new kernel-alt update for Red Hat Enterprise Linux 7 has been released to fix critical DoS vulnerabilities and buffer over-read issues for enhanced security and stability
An update for kernel-alt 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-alt packages provide the Linux kernel version 4.x.
Security Fix(es):
* kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c (CVE-2019-19046)
* kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned. (CVE-2020-10769)
* kernel: sync of excessive duration via an XFS v5 image with crafted metadata (CVE-2020-12655)
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):
* list corruption in iscsi_queuecommand (BZ#1839622)

Topics%20covered

Topics Covered

security advisory Red Hat DoS issue bug fix moderate threat buffer over-read kernel-alt

References

https://access.redhat.com/security/cve/CVE-2019-19046 https://access.redhat.com/security/cve/CVE-2020-10769 https://access.redhat.com/security/cve/CVE-2020-12655 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source: kernel-alt-4.14.0-115.29.1.el7a.src.rpm
aarch64: kernel-4.14.0-115.29.1.el7a.aarch64.rpm kernel-debug-4.14.0-115.29.1.el7a.aarch64.rpm kernel-debug-debuginfo-4.14.0-115.29.1.el7a.aarch64.rpm kernel-debug-devel-4.14.0-115.29.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-115.29.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-115.29.1.el7a.aarch64.rpm kernel-devel-4.14.0-115.29.1.el7a.aarch64.rpm kernel-headers-4.14.0-115.29.1.el7a.aarch64.rpm kernel-tools-4.14.0-115.29.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-115.29.1.el7a.aarch64.rpm kernel-tools-libs-4.14.0-115.29.1.el7a.aarch64.rpm perf-4.14.0-115.29.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-115.29.1.el7a.aarch64.rpm python-perf-4.14.0-115.29.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-115.29.1.el7a.aarch64.rpm
noarch: kernel-abi-whitelists-4.14.0-115.29.1.el7a.noarch.rpm kernel-doc-4.14.0-115.29.1.el7a.noarch.rpm
ppc64le: kernel-4.14.0-115.29.1.el7a.ppc64le.rpm kernel-bootwrapper-4.14.0-115.29.1.el7a.ppc64le.rpm kernel-debug-4.14.0-115.29.1.el7a.ppc64le.rpm kernel-debug-debuginfo-4.14.0-115.29.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-115.29.1.el7a.ppc64le.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:3545-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3545
Issue date: 2020-08-25

Topic

An update for kernel-alt is now available for Red Hat Enterprise Linux 7.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 Red Hat DoS issue bug fix moderate threat buffer over-read kernel-alt

Relevant Releases Architectures

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le

Bugs Fixed

1708775 - CVE-2020-10769 kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned.

1774988 - CVE-2019-19046 kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c

1832543 - CVE-2020-12655 kernel: sync of excessive duration via an XFS v5 image with crafted metadata

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