drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Linux
Name: |
Zwei Probleme in Linux |
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ID: |
RHSA-2021:2570-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Mi, 30. Juni 2021, 07:18 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2021-33034
https://access.redhat.com/security/cve/CVE-2020-26541 |
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Applikationen: |
Linux |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2021:2570-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2570 Issue date: 2021-06-29 CVE Names: CVE-2020-26541 CVE-2021-33034 =====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 8.
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 CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64 Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034)
* kernel: security bypass in certs/blacklist.c and certs/system_keyring.c (CVE-2020-26541)
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):
* [ESXi][RHEL-8] VMXNET3 v4 causes invalid checksums of inner packets of VXLAN tunnel (BZ#1960702)
* fnic crash from invalid request pointer (BZ#1961705)
* GFS2: Failed FS thaw call makes the entire snapshot failed. (BZ#1961849)
* dm writecache: fix performance degradation in ssd mode (BZ#1962241)
* Kernel BUG with act_ct and IP fragments (BZ#1963940)
* core: backports from upstream (BZ#1963952)
* Hibernate resume on RHEL fails in Amazon EC2 C5.18xlarge instance (BZ#1964930)
* [SanityOnly] panic caused by i40e_msix_clean_rings (BZ#1964962)
* tc reclassification limit is too low for OVN (BZ#1965148)
* tc action ct nat src addr does not work while used with ct nat dst addr together (BZ#1965150)
* CNB: Rebase/update TC subsystem for RHEL 8.5 (BZ#1965457)
* sctp: crash due to use after free of sctp_transport structure (BZ#1965632)
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
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1886285 - CVE-2020-26541 kernel: security bypass in certs/blacklist.c and certs/system_keyring.c 1961305 - CVE-2021-33034 kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan
6. Package List:
Red Hat Enterprise Linux BaseOS (v. 8):
Source: kernel-4.18.0-305.7.1.el8_4.src.rpm
aarch64: bpftool-4.18.0-305.7.1.el8_4.aarch64.rpm bpftool-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-core-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-cross-headers-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debug-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debug-core-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debug-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debug-devel-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debug-modules-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debug-modules-extra-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-devel-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-headers-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-modules-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-modules-extra-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-tools-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-tools-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-tools-libs-4.18.0-305.7.1.el8_4.aarch64.rpm perf-4.18.0-305.7.1.el8_4.aarch64.rpm perf-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm python3-perf-4.18.0-305.7.1.el8_4.aarch64.rpm python3-perf-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm
noarch: kernel-abi-stablelists-4.18.0-305.7.1.el8_4.noarch.rpm kernel-doc-4.18.0-305.7.1.el8_4.noarch.rpm
ppc64le: bpftool-4.18.0-305.7.1.el8_4.ppc64le.rpm bpftool-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-core-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-cross-headers-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debug-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debug-core-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debug-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debug-devel-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debug-modules-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debug-modules-extra-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-devel-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-headers-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-modules-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-modules-extra-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-tools-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-tools-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-tools-libs-4.18.0-305.7.1.el8_4.ppc64le.rpm perf-4.18.0-305.7.1.el8_4.ppc64le.rpm perf-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm python3-perf-4.18.0-305.7.1.el8_4.ppc64le.rpm python3-perf-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm
s390x: bpftool-4.18.0-305.7.1.el8_4.s390x.rpm bpftool-debuginfo-4.18.0-305.7.1.el8_4.s390x.rpm kernel-4.18.0-305.7.1.el8_4.s390x.rpm kernel-core-4.18.0-305.7.1.el8_4.s390x.rpm kernel-cross-headers-4.18.0-305.7.1.el8_4.s390x.rpm kernel-debug-4.18.0-305.7.1.el8_4.s390x.rpm kernel-debug-core-4.18.0-305.7.1.el8_4.s390x.rpm kernel-debug-debuginfo-4.18.0-305.7.1.el8_4.s390x.rpm kernel-debug-devel-4.18.0-305.7.1.el8_4.s390x.rpm kernel-debug-modules-4.18.0-305.7.1.el8_4.s390x.rpm kernel-debug-modules-extra-4.18.0-305.7.1.el8_4.s390x.rpm kernel-debuginfo-4.18.0-305.7.1.el8_4.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-305.7.1.el8_4.s390x.rpm kernel-devel-4.18.0-305.7.1.el8_4.s390x.rpm kernel-headers-4.18.0-305.7.1.el8_4.s390x.rpm kernel-modules-4.18.0-305.7.1.el8_4.s390x.rpm kernel-modules-extra-4.18.0-305.7.1.el8_4.s390x.rpm kernel-tools-4.18.0-305.7.1.el8_4.s390x.rpm kernel-tools-debuginfo-4.18.0-305.7.1.el8_4.s390x.rpm kernel-zfcpdump-4.18.0-305.7.1.el8_4.s390x.rpm kernel-zfcpdump-core-4.18.0-305.7.1.el8_4.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-305.7.1.el8_4.s390x.rpm kernel-zfcpdump-devel-4.18.0-305.7.1.el8_4.s390x.rpm kernel-zfcpdump-modules-4.18.0-305.7.1.el8_4.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-305.7.1.el8_4.s390x.rpm perf-4.18.0-305.7.1.el8_4.s390x.rpm perf-debuginfo-4.18.0-305.7.1.el8_4.s390x.rpm python3-perf-4.18.0-305.7.1.el8_4.s390x.rpm python3-perf-debuginfo-4.18.0-305.7.1.el8_4.s390x.rpm
x86_64: bpftool-4.18.0-305.7.1.el8_4.x86_64.rpm bpftool-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-core-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-cross-headers-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debug-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debug-core-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debug-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debug-devel-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debug-modules-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debug-modules-extra-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-devel-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-headers-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-modules-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-modules-extra-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-tools-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-tools-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-tools-libs-4.18.0-305.7.1.el8_4.x86_64.rpm perf-4.18.0-305.7.1.el8_4.x86_64.rpm perf-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm python3-perf-4.18.0-305.7.1.el8_4.x86_64.rpm python3-perf-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm
Red Hat CodeReady Linux Builder (v. 8):
aarch64: bpftool-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debug-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-tools-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm kernel-tools-libs-devel-4.18.0-305.7.1.el8_4.aarch64.rpm perf-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm python3-perf-debuginfo-4.18.0-305.7.1.el8_4.aarch64.rpm
ppc64le: bpftool-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debug-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-tools-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm kernel-tools-libs-devel-4.18.0-305.7.1.el8_4.ppc64le.rpm perf-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm python3-perf-debuginfo-4.18.0-305.7.1.el8_4.ppc64le.rpm
x86_64: bpftool-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debug-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-tools-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm kernel-tools-libs-devel-4.18.0-305.7.1.el8_4.x86_64.rpm perf-debuginfo-4.18.0-305.7.1.el8_4.x86_64.rpm python3-perf-debuginfo-4.18.0-305.7.1.el8_4.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-2020-26541 https://access.redhat.com/security/cve/CVE-2021-33034 https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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