RHSA-2020:0661: Important: kernel security and enhancement update
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: use-after-free in fs/xfs/xfssuper.c (CVE-2018-20976) kernel: heap overflow in mwifiexupdatevsie() function of Marvell WiFi driver (CVE-2019-14816) kernel: heap-based buffer overflow in mwifiexprocesscountryie() function in drivers/net/wireless/marvell/mwifiex/staioctl.c (CVE-2019-14895) kernel: buffer overflow in cfg80211mgdwextgiwessid in net/wireless/wext-sme.c (CVE-2019-17133) kernel: rtlp2pnoaie 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) 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.Enhancement(s): Selective backport: perf: Sync with upstream v4.16 (BZ#1782748)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2020:0661?
The severity of RHSA-2020:0661 is classified as important.
Which vulnerabilities are addressed in RHSA-2020:0661?
RHSA-2020:0661 addresses a use-after-free vulnerability (CVE-2018-20976) and a heap overflow vulnerability (CVE-2019-14816).
How do I fix RHSA-2020:0661?
To fix RHSA-2020:0661, update the kernel packages to version 3.10.0-327.85.1.el7 or later.
What software packages are affected by RHSA-2020:0661?
Affected software packages include kernel, kernel-debug, kernel-devel, and several others within the Red Hat ecosystem.
Is there any risk if RHSA-2020:0661 is not applied?
If RHSA-2020:0661 is not applied, systems may remain vulnerable to critical security exploits related to the identified vulnerabilities.