{"schema_version":"1.7.2","id":"OESA-2023-1471","modified":"2023-08-06T11:05:37Z","published":"2023-08-06T11:05:37Z","upstream":["CVE-2023-21255","CVE-2023-2163","CVE-2023-32248","CVE-2023-32255","CVE-2023-3567","CVE-2023-3609","CVE-2023-3610","CVE-2023-3611","CVE-2023-3776","CVE-2023-3812","CVE-2023-38426","CVE-2023-38428"],"summary":"kernel security update","details":"The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nIn multiple functions of binder.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.\r\n\r\n(CVE-2023-21255)\r\n\r\n(CVE-2023-2163)\r\n\r\nA flaw was found in the Linux kernel\u0026apos;s ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.(CVE-2023-32248)\r\n\r\nVUL-0: CVE-2023-32255: kernel: Linux Kernel ksmbd Session Setup Memory Leak Denial-of-Service Vulnerability(CVE-2023-32255)\r\n\r\nA use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This flaw allows an attacker with local user access to cause a system crash or leak internal kernel information.(CVE-2023-3567)\r\n\r\nA use-after-free vulnerability in the Linux kernel\u0026apos;s net/sched: cls_u32 component can be exploited to achieve local privilege escalation.\r\n\r\nIf tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.\r\n\r\nWe recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.\r\n\r\n(CVE-2023-3609)\r\n\r\nA use-after-free vulnerability in the Linux kernel\u0026apos;s netfilter: nf_tables component can be exploited to achieve local privilege escalation.\r\n\r\nFlaw in the error handling of bound chains causes a use-after-free in the abort path of NFT_MSG_NEWRULE. The vulnerability requires CAP_NET_ADMIN to be triggered.\r\n\r\nWe recommend upgrading past commit 4bedf9eee016286c835e3d8fa981ddece5338795.\r\n\r\n(CVE-2023-3610)\r\n\r\nAn out-of-bounds write vulnerability in the Linux kernel\u0026apos;s net/sched: sch_qfq component can be exploited to achieve local privilege escalation.\r\n\r\nThe qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.\r\n\r\nWe recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.\r\n\r\n(CVE-2023-3611)\r\n\r\nA use-after-free vulnerability in the Linux kernel\u0026apos;s net/sched: cls_fw component can be exploited to achieve local privilege escalation.\r\n\r\nIf tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.\r\n\r\nWe recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.\r\n\r\n(CVE-2023-3776)\r\n\r\nAn out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.(CVE-2023-3812)\r\n\r\nAn issue was discovered in the Linux kernel before 6.3.4. ksmbd has an out-of-bounds read in smb2_find_context_vals when create_context\u0026apos;s name_len is larger than the tag length.(CVE-2023-38426)\r\n\r\nAn issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/smb2pdu.c in ksmbd does not properly check the UserName value because it does not consider the address of security buffer, leading to an out-of-bounds read.(CVE-2023-38428)","affected":[{"package":{"ecosystem":"openEuler:22.03-LTS","name":"kernel","purl":"pkg:rpm/openEuler/kernel\u0026distro=openEuler-22.03-LTS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.0-60.105.0.132.oe2203"}]}],"ecosystem_specific":{"aarch64":["perf-debuginfo-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-headers-5.10.0-60.105.0.132.oe2203.aarch64.rpm","python3-perf-debuginfo-5.10.0-60.105.0.132.oe2203.aarch64.rpm","bpftool-debuginfo-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-devel-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-source-5.10.0-60.105.0.132.oe2203.aarch64.rpm","bpftool-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-debuginfo-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-5.10.0-60.105.0.132.oe2203.aarch64.rpm","perf-5.10.0-60.105.0.132.oe2203.aarch64.rpm","python3-perf-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-debugsource-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-tools-devel-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-tools-debuginfo-5.10.0-60.105.0.132.oe2203.aarch64.rpm","kernel-tools-5.10.0-60.105.0.132.oe2203.aarch64.rpm"],"src":["kernel-5.10.0-60.105.0.132.oe2203.src.rpm"],"x86_64":["kernel-tools-devel-5.10.0-60.105.0.132.oe2203.x86_64.rpm","python3-perf-5.10.0-60.105.0.132.oe2203.x86_64.rpm","kernel-tools-5.10.0-60.105.0.132.oe2203.x86_64.rpm","kernel-source-5.10.0-60.105.0.132.oe2203.x86_64.rpm","kernel-devel-5.10.0-60.105.0.132.oe2203.x86_64.rpm","kernel-5.10.0-60.105.0.132.oe2203.x86_64.rpm","perf-5.10.0-60.105.0.132.oe2203.x86_64.rpm","kernel-tools-debuginfo-5.10.0-60.105.0.132.oe2203.x86_64.rpm","python3-perf-debuginfo-5.10.0-60.105.0.132.oe2203.x86_64.rpm","kernel-debugsource-5.10.0-60.105.0.132.oe2203.x86_64.rpm","bpftool-debuginfo-5.10.0-60.105.0.132.oe2203.x86_64.rpm","kernel-debuginfo-5.10.0-60.105.0.132.oe2203.x86_64.rpm","bpftool-5.10.0-60.105.0.132.oe2203.x86_64.rpm","perf-debuginfo-5.10.0-60.105.0.132.oe2203.x86_64.rpm","kernel-headers-5.10.0-60.105.0.132.oe2203.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1471"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21255"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2163"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-32248"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-32255"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3567"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3609"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3610"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3611"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3776"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3812"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-38426"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-38428"}],"database_specific":{"severity":"Critical"}}