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RedHat: RHSA-2020-1524-01 Important Kernel Buffer Overflow Fix

red hat
Calendar Grey April 22, 2020
Dist Redhat Esm H88
Crucial kernel security patch released for Red Hat Enterprise Linux tackling severe vulnerabilities. Comprehensive overview of enhancements provided.
An update for kernel is now available for Red Hat Enterprise Linux 6

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: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain upper-bound check, leading to a buffer overflow (CVE-2019-17666)
* kernel: offset2lib allows for the stack guard page to be jumped over (CVE-2017-1000371)
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.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow kernel security impact stack overflow important update

References

https://access.redhat.com/security/cve/CVE-2017-1000371 https://access.redhat.com/security/cve/CVE-2019-17666 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: kernel-2.6.32-754.29.1.el6.src.rpm
i386: kernel-2.6.32-754.29.1.el6.i686.rpm kernel-debug-2.6.32-754.29.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.29.1.el6.i686.rpm kernel-debug-devel-2.6.32-754.29.1.el6.i686.rpm kernel-debuginfo-2.6.32-754.29.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.29.1.el6.i686.rpm kernel-devel-2.6.32-754.29.1.el6.i686.rpm kernel-headers-2.6.32-754.29.1.el6.i686.rpm perf-2.6.32-754.29.1.el6.i686.rpm perf-debuginfo-2.6.32-754.29.1.el6.i686.rpm python-perf-debuginfo-2.6.32-754.29.1.el6.i686.rpm
noarch: kernel-abi-whitelists-2.6.32-754.29.1.el6.noarch.rpm kernel-doc-2.6.32-754.29.1.el6.noarch.rpm kernel-firmware-2.6.32-754.29.1.el6.noarch.rpm
x86_64: kernel-2.6.32-754.29.1.el6.x86_64.rpm kernel-debug-2.6.32-754.29.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-754.29.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.29.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-754.29.1.el6.i686.rpm kernel-debug-devel-2.6.32-754.29.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-754.29.1.el6.i686.rpm kernel-debuginfo-2.6.32-754.29.1.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-754.29.1.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-754.29.1.el6.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1524-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1524
Issue date: 2020-04-22

Topic

An update for kernel is now available for Red Hat Enterprise Linux 6.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 buffer overflow kernel security impact stack overflow important update

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1462158 - CVE-2017-1000371 kernel: offset2lib allows for the stack guard page to be jumped over

1763690 - CVE-2019-17666 kernel: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain upper-bound check, leading to a buffer overflow

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