RedHat: RHSA-2020-4686:01 Important: kernel-rt security update
Summary
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: net: bluetooth: heap buffer overflow when processing extended
advertising report events (CVE-2020-24490)
* kernel: Red Hat only CVE-2020-12351 regression (CVE-2020-25661)
* kernel: Red Hat only CVE-2020-12352 regression (CVE-2020-25662)
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.
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-2020-24490 https://access.redhat.com/security/cve/CVE-2020-25661 https://access.redhat.com/security/cve/CVE-2020-25662 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/BleedingTooth
Package List
Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source:
kernel-rt-4.18.0-240.1.1.rt7.55.el8_3.src.rpm
x86_64:
kernel-rt-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-core-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-core-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-devel-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-modules-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debuginfo-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-devel-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-kvm-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-modules-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-modules-extra-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 8):
Source:
kernel-rt-4.18.0-240.1.1.rt7.55.el8_3.src.rpm
x86_64:
kernel-rt-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-core-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-core-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-devel-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-modules-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debuginfo-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-devel-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-modules-4.18.0-240.1.1.rt7.55.el8_3.x86_64.rpm
kernel-rt-modules-extra-4.18.0-240.1.1.rt7.55.el8_3.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-rt is now available for Red Hat Enterprise Linux 8.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 Real Time (v. 8) - x86_64
Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64
Bugs Fixed
1888449 - CVE-2020-24490 kernel: net: bluetooth: heap buffer overflow when processing extended advertising report events
1891483 - CVE-2020-25661 kernel: Red Hat only CVE-2020-12351 regression
1891484 - CVE-2020-25662 kernel: Red Hat only CVE-2020-12352 regression