{"id":"OESA-2023-1586","summary":"kernel security update","details":"The Linux Kernel, the operating system core itself.\r\n\r\n\r\n\r\nSecurity Fix(es):\r\n\r\nA hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.(CVE-2023-1206)\r\n\r\nA buffer overrun vulnerability was found in the netback driver in Xen due to an unusual split packet. This flaw allows an unprivileged guest to cause a denial of service (DoS) of the host by sending network packets to the backend, causing the backend to crash.(CVE-2023-34319)\r\n\r\nAn issue was discovered in the Linux kernel before 6.3.10. fs/smb/server/smb2misc.c in ksmbd does not validate the relationship between the command payload size and the RFC1002 length specification, leading to an out-of-bounds read.(CVE-2023-38432)\r\n\r\n(CVE-2023-3867)\r\n\r\nAn issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.(CVE-2023-40283)\r\n\r\nA flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.(CVE-2023-4194)","modified":"2026-03-11T06:32:34.371964Z","published":"2023-09-02T11:05:50Z","upstream":["CVE-2023-1206","CVE-2023-34319","CVE-2023-38432","CVE-2023-3867","CVE-2023-40283","CVE-2023-4194"],"database_specific":{"severity":"Critical"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1586"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-1206"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34319"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-38432"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3867"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40283"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4194"}],"affected":[{"package":{"name":"kernel","ecosystem":"openEuler:22.03-LTS-SP1","purl":"pkg:rpm/openEuler/kernel&distro=openEuler-22.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.0-136.47.0.125.oe2203sp1"}]}],"ecosystem_specific":{"x86_64":["kernel-tools-devel-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","bpftool-debuginfo-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","perf-debuginfo-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","kernel-headers-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","bpftool-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","kernel-tools-debuginfo-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","python3-perf-debuginfo-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","kernel-debugsource-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","kernel-debuginfo-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","kernel-devel-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","perf-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","kernel-tools-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","kernel-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","python3-perf-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm","kernel-source-5.10.0-136.47.0.125.oe2203sp1.x86_64.rpm"],"src":["kernel-5.10.0-136.47.0.125.oe2203sp1.src.rpm"],"aarch64":["bpftool-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","perf-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","bpftool-debuginfo-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-devel-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-tools-devel-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-debugsource-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-tools-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","perf-debuginfo-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","python3-perf-debuginfo-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","python3-perf-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-tools-debuginfo-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-debuginfo-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-headers-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-source-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm","kernel-5.10.0-136.47.0.125.oe2203sp1.aarch64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2023-1586.json"}}],"schema_version":"1.7.5"}