RedHat: RHSA-2021-1267:01 Important: kernel security and bug fix update
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)
* kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)
* kernel: performance counters race condition use-after-free
(CVE-2020-14351)
* 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):
* Enable CI and changelog for GitLab workflow (BZ#1930932)
Summary
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.
References
https://access.redhat.com/security/cve/CVE-2020-14351 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 Server AUS (v. 7.4):
Source:
kernel-3.10.0-693.84.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.84.1.el7.noarch.rpm
kernel-doc-3.10.0-693.84.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.84.1.el7.x86_64.rpm
perf-3.10.0-693.84.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.4):
Source:
kernel-3.10.0-693.84.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.84.1.el7.noarch.rpm
kernel-doc-3.10.0-693.84.1.el7.noarch.rpm
ppc64le:
kernel-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-debug-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-devel-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-headers-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-tools-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-693.84.1.el7.ppc64le.rpm
perf-3.10.0-693.84.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
python-perf-3.10.0-693.84.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
x86_64:
kernel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.84.1.el7.x86_64.rpm
perf-3.10.0-693.84.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.4):
Source:
kernel-3.10.0-693.84.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.84.1.el7.noarch.rpm
kernel-doc-3.10.0-693.84.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.84.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.84.1.el7.x86_64.rpm
perf-3.10.0-693.84.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.4):
x86_64:
kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.84.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional E4S (v. 7.4):
ppc64le:
kernel-debug-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-693.84.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.84.1.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.84.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 7.4):
x86_64:
kernel-debug-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.84.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.84.1.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for kernel is now available for Red Hat Enterprise Linux 7.4Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended UpdateSupport, and Red Hat Enterprise Linux 7.4 Update Services for SAPSolutions.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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server AUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.4) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.4) - noarch, x86_64
Bugs Fixed
1862849 - CVE-2020-14351 kernel: performance counters race condition use-after-free
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