RHSA-2023:1203: Important: kernel-rt security and bug fix update
First published: Tue Mar 14 2023(Updated: )
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.<br>Security Fix(es):<br><li> kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)</li> <li> kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)</li> <li> kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack (CVE-2022-4379)</li> <li> kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan (CVE-2023-0179)</li> <li> ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266)</li> <li> kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269)</li> 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.<br>Bug Fix(es):<br><li> kernel-rt: update RT source tree to the latest RHEL-9.0.z7 Batch (BZ#2162424)</li>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-core | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-debug | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-debug-core | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-debug-debuginfo | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-debug-devel | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-debug-modules | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-debug-modules-extra | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-debuginfo | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-devel | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-modules | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-modules-extra | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-debug-kvm | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
| redhat/kernel-rt-kvm | <5.14.0-70.49.1.rt21.120.el9_0 | 5.14.0-70.49.1.rt21.120.el9_0 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2150272
- https://bugzilla.redhat.com/show_bug.cgi?id=2150999
- https://bugzilla.redhat.com/show_bug.cgi?id=2152548
- https://bugzilla.redhat.com/show_bug.cgi?id=2152807
- https://bugzilla.redhat.com/show_bug.cgi?id=2161713
- https://bugzilla.redhat.com/show_bug.cgi?id=2163379
- https://access.redhat.com/security/updates/classification/#important
- https://access.redhat.com/errata/RHSA-2023:1203 (Advisory)
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