Red Hat Security AdvisoryRHSA-2023:7557
kernel security and bug fix update
Released 2023-11-28 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.114.1.el8_4, kernel-4.18.0-305.114.1.el8_4, kernel-abi-stablelists-4.18.0-305.114.1.el8_4 +14
- Red Hat Enterprise Linux BaseOS E4S (v.8.4) bpftool-4.18.0-305.114.1.el8_4, kernel-4.18.0-305.114.1.el8_4, kernel-abi-stablelists-4.18.0-305.114.1.el8_4 +19
- Red Hat Enterprise Linux BaseOS TUS (v.8.4) bpftool-4.18.0-305.114.1.el8_4, kernel-4.18.0-305.114.1.el8_4, kernel-abi-stablelists-4.18.0-305.114.1.el8_4 +14
Fixes 4 records
Priority MEDIUM 58
An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.05066 · Published 2023-07-24 · Fixed CWE-209
Priority MEDIUM 50
A use-after-free vulnerability was found in drivers/nvme/target/tcp.c` in `nvmet_tcp_free_crypto` due to a logical bug in the NVMe/TCP subsystem in the Linux kernel.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.09617 · Published 2023-11-01 · Partial fix · 4.18.0-513.9.1.rt7.311.el8_9, 4.18.0-513.9.1.el8_9 +11 CWE-416
Priority LOW 24
In the Linux kernel, the following vulnerability has been resolved: ice: Don't tx before switchdev is fully configured There is possibility that ice_eswitch_port_start_xmit might be called while some resources are still…
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.00157 · Published 2025-10-07 · Partial fix · 6.1.55, 6.5.5 +1 CWE-476
Priority LOW 22
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix DMA mappings leak During reallocation of RX buffers, new DMA mappings are created for those buffers.
CVSS — · EPSS 0.00244 · Published 2025-12-09 · Partial fix · 5.10.152, 5.15.76 +2
THREATIST.IORead the docs