OESA-2023-1539

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OESA-2023-1539

Summary: kernel security update

Details: The Linux Kernel, the operating system core itself. Security Fix(es): An out-of-bounds read vulnerability was found in the SR-IPv6 implementation in the Linux kernel. The flaw exists within the processing of seg6 attributes. The issue results from the improper validation of user-supplied data, which can result in a read past the end of an allocated buffer. This flaw allows a privileged local user to disclose sensitive information on affected installations of the Linux kernel.(CVE-2023-2860) A use-after-free flaw was found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel. This flaw allows a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue.(CVE-2023-4128)

References: https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1539, https://nvd.nist.gov/vuln/detail/CVE-2023-2860, https://nvd.nist.gov/vuln/detail/CVE-2023-4128