CWE
119 416 362
Advisory Published

RHSA-2021:1267: Important: kernel security and bug fix update

First published: Tue Apr 20 2021(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)</li> <li> kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)</li> <li> kernel: performance counters race condition use-after-free (CVE-2020-14351)</li> <li> kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363)</li> 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.<br>Bug Fix(es):<br><li> Enable CI and changelog for GitLab workflow (BZ#1930932)</li>

Affected SoftwareAffected VersionHow to fix
redhat/kernel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-abi-whitelists<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debug<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debug-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debug-devel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-devel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-doc<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-headers<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-tools<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-tools-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-tools-libs<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-tools-libs-devel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/perf<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/perf-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/python-perf<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/python-perf-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-bootwrapper<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debug<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debug-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debug-devel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-debuginfo-common-ppc64le<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-devel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-headers<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-tools<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-tools-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-tools-libs<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/kernel-tools-libs-devel<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/perf<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/perf-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/python-perf<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7
redhat/python-perf-debuginfo<3.10.0-693.84.1.el7
3.10.0-693.84.1.el7

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Frequently Asked Questions

  • What is the severity of RHSA-2021:1267?

    RHSA-2021:1267 is rated as a moderate severity vulnerability affecting the Linux kernel.

  • How do I fix RHSA-2021:1267?

    To fix RHSA-2021:1267, update your kernel packages to version 3.10.0-693.84.1.el7 or newer.

  • What vulnerabilities are addressed in RHSA-2021:1267?

    RHSA-2021:1267 addresses CVE-2021-27364 and CVE-2021-27365, which are related to out-of-bounds read and heap buffer overflow in the iSCSI subsystem.

  • Which systems are affected by RHSA-2021:1267?

    RHSA-2021:1267 affects systems running the kernel version up to 3.10.0-693.84.1.el7, including various architectures like x86_64 and ppc64le.

  • Is RHSA-2021:1267 applicable to all Linux distributions?

    No, RHSA-2021:1267 specifically applies to Red Hat-based systems using the specified kernel version.

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