OESA-2024-1031

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OESA-2024-1031

Summary: kernel security update

Details: The Linux Kernel, the operating system core itself. Security Fix(es): openeuler-linux-kernel-4.19.0-cbs_destroy-NULL-ptr-deref-391216(CVE-2021-33630) openeuler-linux-kernel-5.10.149-ext4_write_inline_data-kernel_bug-365020(CVE-2021-33631) An issue was discovered in the Linux kernel through 6.3.8. A use-after-free was found in ravb_remove in drivers/net/ethernet/renesas/ravb_main.c.(CVE-2023-35827) An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data being printed and potentially leaked to the kernel ring buffer (dmesg).(CVE-2023-6121) A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation. A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group(). We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b. (CVE-2023-6931)

References: https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1031, https://nvd.nist.gov/vuln/detail/CVE-2021-33630, https://nvd.nist.gov/vuln/detail/CVE-2021-33631, https://nvd.nist.gov/vuln/detail/CVE-2023-35827, https://nvd.nist.gov/vuln/detail/CVE-2023-6121, https://nvd.nist.gov/vuln/detail/CVE-2023-6931