A kpatch-patch security update has been released for Red Hat Enterprise Linux 7.6.
RHSA-2021:2731-01: Important: kpatch-patch security update
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2021:2731-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2731
Issue date: 2021-07-20
CVE Names: CVE-2021-3347 CVE-2021-33034 CVE-2021-33909
=====================================================================
1. Summary:
An update is now available for Red Hat Enterprise Linux 7.6 Update Services
for SAP Solutions.
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server E4S (v. 7.6) - ppc64le, x86_64
3. Description:
This is a kernel live patch module which is automatically loaded by the RPM
post-install script to modify the code of a running kernel.
Security Fix(es):
* kernel: size_t-to-int conversion vulnerability in the filesystem layer
(CVE-2021-33909)
* kernel: Use after free via PI futex state (CVE-2021-3347)
* kernel: use-after-free in net/bluetooth/hci_event.c when destroying an
hci_chan (CVE-2021-33034)
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.
4. 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
5. Bugs fixed ( https://bugzilla.redhat.com/):
1922249 - CVE-2021-3347 kernel: Use after free via PI futex state
1961305 - CVE-2021-33034 kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan
1970273 - CVE-2021-33909 kernel: size_t-to-int conversion vulnerability in the filesystem layer
6. Package List:
Red Hat Enterprise Linux Server E4S (v. 7.6):
Source:
kpatch-patch-3_10_0-957_58_2-1-4.el7.src.rpm
kpatch-patch-3_10_0-957_61_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-957_61_2-1-4.el7.src.rpm
kpatch-patch-3_10_0-957_62_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-957_65_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-957_66_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-957_70_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-957_72_1-1-1.el7.src.rpm
kpatch-patch-3_10_0-957_76_1-1-1.el7.src.rpm
ppc64le:
kpatch-patch-3_10_0-957_58_2-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_58_2-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_61_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_61_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_61_2-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_61_2-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_62_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_62_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_65_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_65_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_66_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_66_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_70_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_70_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_72_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_72_1-debuginfo-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_76_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-957_76_1-debuginfo-1-1.el7.ppc64le.rpm
x86_64:
kpatch-patch-3_10_0-957_58_2-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_58_2-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_61_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_61_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_61_2-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_61_2-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_62_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_62_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_65_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_65_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_66_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_66_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-957_70_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-957_70_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-957_72_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-957_72_1-debuginfo-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-957_76_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-957_76_1-debuginfo-1-1.el7.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/
7. References:
https://access.redhat.com/security/cve/CVE-2021-3347
https://access.redhat.com/security/cve/CVE-2021-33034
https://access.redhat.com/security/cve/CVE-2021-33909
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/RHSB-2021-006
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
