Security Vulnerabilities fixed in kernel-rt RHSA-2021:0537

Description

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: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661) kernel: performance counters race condition use-after-free (CVE-2020-14351) kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705) kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661) kernel: performance counters race condition use-after-free (CVE-2020-14351) kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705) 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): kernel-rt: update RT source tree to the RHEL-8.3.z2 source tree (BZ#1908433)

Affected Applications

kernel-rt

CVE References

CVE-2020-29661 CVE-2020-14351 CVE-2020-25705

Other References

https://access.redhat.com/errata/RHSA-2021:0537