OESA-2023-1512

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OESA-2023-1512

Summary: kernel security update

Details: The Linux Kernel, the operating system core itself. Security Fix(es): A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.(CVE-2023-3772) A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.(CVE-2023-3863) A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.(CVE-2023-4133) A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.(CVE-2023-4147)

References: https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1512, https://nvd.nist.gov/vuln/detail/CVE-2023-3772, https://nvd.nist.gov/vuln/detail/CVE-2023-3863, https://nvd.nist.gov/vuln/detail/CVE-2023-4133, https://nvd.nist.gov/vuln/detail/CVE-2023-4147