RHSA-2021:0354 — Security Advisory
Red Hat Security Advisory: kernel-alt security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · February 2, 2021
Updated · June 28, 2026
Topic
An update for kernel-alt is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The kernel-alt packages provide the Linux kernel version 4.x.
Security Fix(es):
-
kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)
-
kernel: some ipv6 protocols not encrypted over ipsec tunnel (CVE-2020-1749)
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kernel: use-after-free in fs/block_dev.c (CVE-2020-15436)
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.