RedHat: RHSA-2021-0354:01 Important: kernel-alt security update
Summary
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)
* 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.
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-2020-1749 https://access.redhat.com/security/cve/CVE-2020-15436 https://access.redhat.com/security/cve/CVE-2020-29661 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source:
kernel-alt-4.14.0-115.35.1.el7a.src.rpm
aarch64:
kernel-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.35.1.el7a.aarch64.rpm
perf-4.14.0-115.35.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
python-perf-4.14.0-115.35.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
noarch:
kernel-abi-whitelists-4.14.0-115.35.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.35.1.el7a.noarch.rpm
ppc64le:
kernel-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.35.1.el7a.ppc64le.rpm
perf-4.14.0-115.35.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.35.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
s390x:
kernel-4.14.0-115.35.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.35.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.35.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.35.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.35.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.35.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.35.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.35.1.el7a.s390x.rpm
perf-4.14.0-115.35.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm
python-perf-4.14.0-115.35.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):
aarch64:
kernel-debug-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.35.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm
noarch:
kernel-doc-4.14.0-115.35.1.el7a.noarch.rpm
ppc64le:
kernel-debug-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.35.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.35.1.el7a.ppc64le.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-alt is now available for Red Hat Enterprise Linux 7.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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le
Bugs Fixed
1809833 - CVE-2020-1749 kernel: some ipv6 protocols not encrypted over ipsec tunnel
1901168 - CVE-2020-15436 kernel: use-after-free in fs/block_dev.c
1906525 - CVE-2020-29661 kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free